Twister, Go: Day’s Undoing in Modern

Day's Undoing LargeSometimes, Wizards spoils a card that seems potentially powerful if a game operates in an unconventional way. When they do, Magic players often hit the forums to discuss its implications. Day’s Undoing is reaching Treasure Cruise-esque levels of hype, which makes perfect sense – like Cruise, the card provides a game-breaking effect (literally power) for a steep cost. “How steep?” creates the buzz. No other spell asks you to end your turn on resolution. The same could be said of Cruise; while we had threshold abilities in Nimble Mongoose, we never had threshold abilities that asked you to get threshold again. As we now know, “delve 7” is a laughably minor cost for such a tremendous effect. So what about “End the turn?”

Cost Misevaluation

I cherry-picked these posts, but I didn’t look far; a quick skim through the first couple pages of MTGSalvation’s Treasure Cruise thread yielded these reactions to the spoiler:

Treasure Cruise“Well, it’s fine for a common I guess. I just hope we get a better draw spell with constructed purposes.”

“This card is so awful in your opening hand in modern it’s offensive. You’ll be dead before you can play it. Thirst for knowledge is always 3 for 3 at instant speed.”

“This is either unplayable jank or one of the most broken cards ever printed.”

The last sentiment is one more widely felt with Day’s Undoing. Treasure Cruise Winter left a bitter taste in the mouths of those who ate their words, causing many MTGS users to issue a disclaimer with their dismissal of Day’s Undoing. But we still get comments like these in the Day’s Undoing discussion:

“Better than Time Reversal but still bulk Mythic.”

Day’s Undoing is Broken

Obviously, we won’t know exactly how good Day’s Undoing is until it descends upon Modern on July 17th. But after some admittedly limited testing (I put in about 15 hours since the card was spoiled four days ago), I’ve come to the conclusion that Undoing will indeed Undo Modern, pushing the format even deeper into streamlined aggressive strategies and away from interactive ones that patiently accumulate incremental advantages.

When Treasure Cruise was legal, BGx and slower blue decks became all but unplayable. Why spend mana (read: time) to Thoughtseize pieces from your opponent’s hand when he can tap an Island and draw three cards? Or try inching out value with Electrolyze when your opponent, for the same amount of mana, can play a threat, counter a spell, and draw three cards? Day’s Undoing poses the same questions, except its symmetrical nature erases any card advantage gained by other means. Not only is Undoing hands down the most efficient card advantage machine in Modern, but players looking to draw cards in a non-Day’s Undoing way will just get trumped by Day’s Undoing. Consider a Twin pilot casting Snapcaster Mage to recycle a binned Lightning Bolt. The player paid 1UR for a body, a Bolt, and a card (the in-hand Bolt he didn’t need to cast). His opponent untaps, plays out whatever’s left of his hand, and casts Day’s Undoing. The extra card provided by Snapcaster Mage is gone as both players restock to 7. The Twin player would have been better served casting the Bolt in his hand and doing something more impactful with the remaining mana – I can think of many two-drop creatures with better stats than Snapcaster.

(A quick aside: Tarmogoyf isn’t one of them. A resolved Undoing empties both graveyards, setting Tarmogoyf to 0/1 and killing him if he has even a single damage marked before any player receives priority. That makes the Lhurgoyf a pretty bad blocker if you want him to stick around – eat even a 1/1 and Day’s Undoing eats the Tarmogoyf.)

“Symmetrical” effects rarely are. Smallpox is only symmetrical if both players have the same number of creatures, lands, and cards. Day’s Undoing is only symmetrical if both players have the same amount of cards in hand. Either way, these cards slot into decks that take full advantage of the effect. Day’s Undoing in particular is very tempo-centric, favoring the player down on cards and up on board presence. In other words, Undoing rewards players for throwing away cards as quickly as possible.

Sound familiar?

Finding a Home: Affinity

While “Draw 7 cards” best fits into linear decks, “end the turn” is mostly risky against… other linear decks. Your opponent could untap and slam a good deal of those new cards on the table to overcome whatever board presence you’ve established. Undoing decks must either be able to stop opponents from casting anything (e.g. Silence), match opposing board presence (e.g. Aether Vial, one-drop threats), or ignore that board presence entirely (evasion, reach). I started with an Affinity shell, since it boasts plenty of low-cost evasive threats, packs strictly-better Lightning Bolts, and can consistently power out Day’s Undoing on turn two, netting upwards of four cards against opponents while “forcing” a mull to seven they have no control over.

Undoing Affinity, by Jordan Boisvert

Creatures (16)
Arcbound Ravager
Ornithopter
Memnite
Signal Pest

Sorceries (8)
Day’s Undoing
Thoughtcast

Instants (8)
Lightning Bolt
Galvanic Blast

Other (12)
Mox Opal
Springleaf Drum
Cranial Plating

Lands (16)
Glimmervoid
Darksteel Citadel
Blinkmoth Nexus
Inkmoth Nexus
Sideboard (15)
Wear // Tear
Vault Skirge
Whipflare
Blood Moon
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With eight high-power draw spells, Undoing Affinity finds Cranial Plating with frightening accuracy. Memnite, Ornithopter, and frequently Signal Pest are mostly mana dorks that turn into huge piles of damage with a Plating or a Ravager, while Pest helps Blinkmoth dole out non-negligible damage increments (i.e. 3) if opponents want to play the waiting game to counter our bombs. A single Cranial connection usually ends the game; the board gets so developed that the equipment pumps for lethal by itself. Otherwise, we transform into a Burn deck after landing a hit. Between eight Bolts, four Draw 2s, and four Draw 7s, burning opponents out even from 20 proves entirely manageable. Bolts have added utility against the other aggressive strategies sure to dominate Modern post-Origins.

Previously, Affinity only ran 2-3 Memnite, since spending a card on a measly 1/1 body wasn’t exactly where the deck wanted to be. But with Days Undoing, we’re not spending anything. The sorcery incentivizes us to cast as many spells as possible.

Steel OverseerThe cards absent from my list represent how deeply Day’s Undoing will alter the format. Only the most efficient cards remain playable. Besides Ravager, Plating, and Undoing, every spell in the deck costs one or zero. For a two-drop to earn its place, it must win us games the turn it comes down. Unlike Ravager and Plating, Steel Overseer doesn’t deal 12 damage after we cast him. For a three-drop to merit inclusion here, it has to be the best card in the deck. Unlike Undoing, Etched Champion doesn’t draw us 7 cards. Since we’re so fast, the lifegain from Vault Skirge is irrelevant in enough matchups that I’m fine with them in the sideboard.

Sideboarding Undoing Affinity

Disclaimer: my sideboards for each of these decks are pretty half-baked since I’ve yet to get any “real” testing in. While I sunk maybe seven hours into Undoing Affinity, I only tested it against existing decks. After Origins reshapes the metagame, we’ll have a better idea of what to include.

wear tearWear // Tear seems like the best option against Stony Silence, which causes huge issues for the deck. My plan against Stony has always been to hope opponents don’t draw it, since it turns off many colored sources (which cast Tear). Alternatively, relying on opening with Thoughtseize while my opponent opens with the enchantment has always seemed really bad to me. That said, we do need an answer to the card since Affinity will skyrocket in metagame shares after Origins and many players will pack a handful of Stony Silence to deal with us. Wear // Tear’s application against the mirror makes it an obvious choice. Ancient Grudge gets shuffled right back into the deck via Day’s Undoing, so flashback doesn’t make it much better in this matchup than Shatter. Wear // Tear also messes with Bogles, another linear poised to profit from Day’s Undoing.

Vault Skirge goes over aggressive decks that attack our life total. This includes Burn and possibly the mirror, especially if other Affinity decks end up running as many Bolts as I do. It also comes in against the low-to-the-ground tempo strategies like Treasure Cruise Delver I expect to Whipflareshow up in some number (more on these decks below).

Day’s Undoing will force aggro decks into the most efficient creatures around, making Whipflare a stellar choice for nonartifact swarm strategies. It kills Delver of Secrets, Goblin Guide, Monastery Swiftspear, and mana dorks for only two mana. The best part: against the decks it hoses, we get it over and over again, since Day’s Undoing repeatedly shuffles our four copies back into the deck.

Blood Moon might prove a little slow for the coming meta, but I expect some decks to get greedy with their mana and prioritize aggression. Affinity is the only existing deck capable of consistently powering out turn-two Blood Moons, which devastate even resilient manabases.

Finding a Home: Burn

The next logical step was to jam Day’s Undoing into Modern’s most linear deck. In Burn, we cast it on turn 3 or 4 after spending all our spells for a new grip. We don’t care so much about giving opponents another hand – fair decks will be drawing creatures, which usually don’t start attacking until the turn after they resolve. Most of the time I cast Day’s Undoing, I’m out of cards and opponents are already under 10 life. The odds of drawing them into something that can deal with three more Bolts are very slim. Here’s the list:

Undoing Burn, by Jordan Boisvert

Creatures (14)
Goblin Guide
Monastery Swiftspear
Eidolon of the Great Revel
Grim Lavamancer

Sorceries (12)
Lava Spike
Faithless Looting
Day’s Undoing

Instants (14)
Lightning Bolt
Searing Blaze
Skullcrack
Lightning Helix

Lands (20)
Arid Mesa
Bloodstained Mire
Wooded Foothills
Steam Vents
Sacred Foundry
Stomping Ground
Mountain
Sideboard (15)
Destructive Revelry
Deflecting Palm
Lightning Helix
Hallow
Rending Volley
Stony Silence
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Grim Lavamancer already earns a place in most (good) Burn lists, but he plays a second role in this deck. The drawback of delving out cards for damage can be used to our advantage if we eat lands instead of spells before casting Day’s Undoing, since it increases our chances of drawing business later. (The same can be said of delve creatures like Hooting Mandrills).

Faithless LootingFaithless Looting is the weirdo card here. It does a few interesting things for the deck: firstly, it finds lands early in exchange for slower burn spells or extra copies of Day’s Undoing (we only need one). Making the first three land drops is crucial to taking advantage of an Undoing in hand. It also pumps Monastery Swiftspear, sometimes while drawing us into another one-mana spell we can cast before attacks. I’ve even flashed it back a couple times for the extra point of damage. Similarly, Looting can stock the Graveyard for Grim Lavamancer. But most importantly, it turns an “unkeepable” seven drawn off Day’s Undoing into a goldmine. By the time we cast Undoing, we have 3+ lands on the battlefield, so any extras we draw are basically dead. Faithless chucks them immediately for a shot at more fire, and can be flashed back easily with mana up after an Undoing.

Sideboarding Undoing Burn

To combat aggressive decks, the mainboard already packs Lightning Helix and a full set of Searing Blaze. But even coupled with these removal spells, 4 Destructive Revelry from the sideboard does little to pacify Affinity. In testing I found it best to add a couple of Stony Silence and run 4 Deflecting Palm, which blows out Cranial Plating attacks.

HallowI’m also worried about the mirror. After boarding, 4 Helix, 4 Palm, 4 Blaze, and 4 Skullcrack should help the matchup enormously. Just to make sure we have the edge, I ran a Hallow in the board. The card won me a ton of games against Burn when I played Counter-Cat in the Treasure Cruise era, and I expect it to do the same next season. For those of you doubting this innocuous common, I’ll just say you haven’t lived until you’ve Hallowed a Searing Blaze.

In the Burn mirror, nobody wants to cast Day’s Undoing; whoever does will probably lose to his opponent next turn. Both players board them out and the game revolves around lifegain and board presence. Elsewhere, Burn takes perhaps better advantage of the spell than anybody, since the cards drawn can go straight to the opponent’s head.

Rending Volley was a concession to the Twin decks in my playtest group. I was happy to have it, but I don’t see Twin sticking around once Day’s Undoing becomes legal. In practice, I did cast Undoing with a mana up and draw into Rending Volley for the blowout twice.

Finding a Home: Counter-Cat

Since I brewed the deck this afternoon, it’s untested and has a lot of room to grow. I still wanted to include it to show some other applications for Day’s Undoing. Here’s my Counter-Cat take on Day’s Undoing:

Undoing Counter-Cat, by Jordan Boisvert

Creatures (14)
Wild Nacatl
Delver of Secrets
Monastery Swiftspear
Hooting Mandrills

Sorceries (13)
Serum Visions
Gitaxian Probe
Day’s Undoing
Faithless Looting

Instants (16)
Mutagenic Growth
Lightning Bolt
Vapor Snag
Silence

Lands (17)
Arid Mesa
Misty Rainforest
Flooded Strand
Scalding Tarn
Temple Garden
Steam Vents
Hallowed Fountain
Stomping Ground
Sacred Foundry
Island
Sideboard (15)
Hallow
Remand
Lightning Helix
Stony Silence
Pyroclasm
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Since I brewed the deck this afternoon, it’s untested and has a lot of room to grow. I still wanted to include it to show some other applications for Day’s Undoing. I miss Tarmogoyf dearly, but one-drops might even be better than the Lhurgoyf in this shell. Undoing Counter-Cat is an exercise in mana efficiency, though it does heavily tax the life total. It operates under the premise that opposing decks aren’t as fast, so life doesn’t matter much.

Serum Visions, Gitaxian Probe, and Faithless Looting find Day’s Undoing while pumping up Monastery Swiftspear. Vapor Snag keeps the board clear and basically becomes a one-mana Terminate (plus damage!) with Day’s Undoing. Mutagenic Growth saves our beaters from Searing Blaze and Lightning Bolt, helps them run over bigger blockers, and turns into reach with an unblocked attacker. Swiftspear makes Growth a 0-mana Lava Spike. And Day’s Undoing turns Silence into Time Walk.

SilenceSilence has never seen serious play because it costs you a card. But nothing costs you a card anymore. With threats on the board, we can cast it on our opponent’s upkeep as a one-mana, pre-emptive Remand. They pass the turn right back and we attack again for more damage. Silence makes it harder for opponents to spend their cards as fast as we spend ours, making Undoing even more one-sided. It can also clear the way for lethal burn spells (including a flurry of Mutagenic Growths) or for Day’s Undoing itself. If opponents Negate the Silence, we simply pass the turn. If they don’t, Undoing resolves, stealing the Negate anyway. After Undoing, an upkeep Silence ensures opponents won’t use their new cards before we get to ours.

Sideboarding Undoing Counter-Cat

Rest for the Weary may do more work, but Hallow seems like the best anti-Burn technology here. Lightning Helix also comes in against them, as well as against decks we want to beat with reach or decks with lots of targets. Remand creams slower decks and Stony Silence hoses Affinity. The most interesting card in the sideboard is Pyroclasm, which only kills one of our creatures (Delver of Secrets). I don’t expect many creatures in the new meta to be x/3 or higher, meaning Pyroclasm can do the same heavy lifting it did for me when Treasure Cruise was legal.

A Linear Future

Day’s Undoing doesn’t only slot into Burn and Affinity. All the aggressive linear decks want this card. Bogles and Infect definitely want it. Even Merfolk and Taking Turns want it. Of these, I can only see Bogles sticking around. Aether Vial is just too slow. Taking Turns is way too slow.

If every linear deck benefits greatly from running the card, it’s possible that some won’t run it at all, opting instead to profit from their opponents’ copies. The Undoing-less decks would give up some game against slower interactive strategies, but I don’t think those strategies will be viable at all given the sheer number of linear decks that will run Day’s Undoing. The card is so powerful because it gives the caster choice over when to fire it off. If an opponent manages to drop his hand before I drop mine, the Day’s Undoing will just sit in my hand. If not, it will punish my opponent. It punishes hard enough to probably merit inclusion in the main even in linear mirrors, where it shines on the play (à la Eidolon of the Great Revel).

The worst fate Day’s Undoing can suffer in Modern is a relegation to the linear deck’s sideboard, mostly to avoid restocking other linear decks. But considering the card’s insane applications against interactive strategies – namely, BGx and Twin – I don’t see this happening. I see a format full of linear decks and Chalices.

Wizards’ initiative to produce maybe-too-good cards greatly appeals to me. The powerful cards that end up okay in a format shake things up and add new dimensions of play. But Day’s Undoing is too strong for Modern. We’re in for a twisted few months.

Jordan is the copy editor at Modern Nexus. He has played Magic since 2003, and Modern since its inception. A devoted theorist, he always brings tuned brews to events. Jordan favors card efficiency over raw power and specializes in disruptive aggro strategies.

19 thoughts on “Twister, Go: Day’s Undoing in Modern

  1. I’m sorry, but that affinity list is terrible.

    First off, you have 12 colored sources and 16!!! colored spells. This is not going to work out at all, especially when we go to part 2:

    you only have 16 creatures. No vault skirges main is just wrong, and running 4 Thoughtcasts and 4 Lightning Bolts along with 4 Blasts is just….too much. Which poses the question if you’ve ever played an affinity deck.

    I want to start with 4 Days Undoing not because its necessarily good, but because if I’m going to test it might as well go big. So lets start with an Affinity core with 4 Days Undoing in it:

    3 Memnite
    4 Ornithopter
    4 Signal Pest
    4 Vault Skirge
    4 Arcbound Ravager

    4 Mox Opal
    4 Springleaf Drum
    4 Cranial Plating
    1 Welding Jar (can be 4th Memnite)
    4 Days Undoing

    4 Glimmervoid (typically only run 3, but we want 17 lands with this list)
    1 Island
    4 Darksteel Citadel
    4 Inkmoth Nexus
    4 Blinkmoth Nexus

    that takes us to 4 Colored spells (typical affinity lists run 6-8) and a total of 53 cards, which allows us 7 slots.

    2 Master of Etherium and 2 Steel Overseer gives us more power. That takes us to 57. I think I also want some number of Frogmite, especially if we’re cruising through our deck that fast. Realistically, 4 Days Undoing is PROBABLY too much, so lets try 3 and run 4 Frogmites.

    That gives us a list of:
    3 Memnite
    4 Ornithopter
    4 Signal Pest
    4 Vault Skirge
    4 Arcbound Ravager
    2 Steel Overseer
    2 Master of Etherium
    4 Frogmite

    4 Mox Opal
    4 Springleaf Drum
    4 Cranial Plating
    1 Welding Jar (can be 4th Memnite)
    3 Days Undoing

    4 Glimmervoid (typically only run 3, but we want 17 lands with this list)
    1 Island
    4 Darksteel Citadel
    4 Inkmoth Nexus
    4 Blinkmoth Nexus

    Which If my math is correct gives us 6 colored spells, 60 cards and WAY more consistency than your list.

    1. I’ve been playing Affinity since Standard and have to disagree with you. We only want to draw one color source since we can count on Day’s Undoing to find us more. Similarly, we don’t want too many creatures – Undoing just fills our hand back up and finds us more. Burn is our primary win condition anyway. The Bolts are important because they provide that instant reach and we don’t care about wasting cards – in fact, we want to spend them as quickly as possible. Waste is good. Day’s Undoing rewards us for playing bad Magic. Cards like Master are way too slow for an Undoing meta. If you doubt the list I’ll invite you to proxy up the Undoings and give it a shot; I’ve been very impressed by how fast and resilient it is.

      1. I feel like if you want to play a deck where burn is your end game, then play burn. Affinity rewards itself by flooding the board with a position that is nigh impossible to come back from.

        You say that Steel Overseer doesnt win the game the turn you play it. I say you are right, but with Days Undoing in my list, resolving a Master or Overseer sets you up to a position that allows you to flood the board where spot removal (which is the premier removal right now) is awful, and Kolaghan`s Command isnt enough. Frogmites allow the hand to be emptied to chain Days Undoing faster, and Overseer and Master allow you to capitlize on this position.

        I understand you only need 1 colored source, but the problem is having 1 source and not able to capitalize on refilling your hand. My list chains Day into Day easier than yours will.

      2. You still should consider running more colored sources. If the plan is to dump hand into Undoing, you really want a colored source always available on turn 2 so you can start bolting before casting Undoing. I can also see this deck making good use of two colored sources early on (thoughtcast into same turn bolt).

        12 sources just isn’t enough for that many colored spells.

        If the deck is as good you claim, then your tuning priority should be to make it more consistent. I’d suggest cutting two between thoughtcasts and inkmoths for a couple Shivan Reefs.

        1. I initially had an Island over the 4th Inkmoth and considered running a Shivan Reef over it. I did cut it since I don’t see lots of Path to Exile these days but another Inkmoth seemed better to me. It’s possible that I’m lacking in colored sources, but that also might be indicative of my playstyle; I mulligan very aggressively, and Day’s Undone actually counteracts any disadvantage you do get from a mulligan.

  2. There are some bold statements in this article. I recognize the potential of Day’s Undoing (who wouldn’t?), and there are definitely some linear decks out there that can mitigate some of the weaknesses (I especially liked your take on Burn with it), but I think it’s going to have to prove to me that it truly is a “must have” piece in burn-through-your-hand-style aggro. As for the decks themselves… I don’t know if I’d want 4 in either of them (it makes drawing multiples a real issue to deal with, which you had to address with Faithless Looting in Burn – not feeling that). 2-3 seems appropriate.

    I’m also surprised you didn’t try this out in Merfolk – that deck has Vial (which you mentioned), pumps out cards from its hand (like you mentioned), can attack and then throw this bad boy down, and it doesn’t even have to splash for it. It might not work, but it’s worth a shot (definitely something to consider when paired with the Disrupting Shoals that have done so well for your spin on Delver).

  3. I was doing some limited testing with Day’s Undoing in Burn. Following the trend with Treasure Cruise, I only ran it as a 3-of, and didn’t make any dramatic changes to the burn list otherwise. Goldfishing, the card was great. When I drew it, I could usually play it on turn 3-4 and sometimes even follow up with a lightning bolt or shard volley at the beginning of my opponent’s turn, thus making up for any lost damage. And then the next turn, I’d unload my hand for an obscene 9+ damage. Awesome.

    The problem is, when I think about how this card does in actual match-ups, I get nervous.

    Looking at the T1 decks:
    -Jund: It feels like this card is made for this match up. If I can get this out turn 3 or 4, I should catch Jund with 3-4 cards still in hand and get some real value. However, if my game slows down and I topdeck this game 6, I might be nervous. Jund could very well draw the cards it needs to kill me next turn.
    -Affinity: Terrible. They’ll just kill me on their turn.
    -Burn: Horrible, as you mentioned. They’ll hit me for 9+ damage on their turn.
    -Grixis Twin: I’m nervous about handing a combo deck 7 more combo cards, especially since they can flash in their exarch or pestermite right before this goes off and then play twin on their turn.
    -RG Tron: Feels pretty good. Not too much they can do unless they can get up to 15 mana and put down Emrakul.
    -UR Twin: Pretty nervous, same as with Grixis Twin.
    -Amulet Bloom: Pretty sure they’ll find a way to cast their Primal Titan or Hive Mind.

    Similarly, looking at the T2 decks, Im nervous about the linear and combo decks: Abzan Company, Merfolk, Infect, Elves, Naya Zoo, Scapeshift, and Ad Nauseum all have a really good chance of killing me next turn. I’m feeling okay about Abzan and Grixis Control. On the fence about Delver.

    So at the end of the day, this card only seems particularly good versus BGx, Tron, and Control, and even then if I don’t draw it by turn 3 or 4, they might still be able to use those cards to squeak out a win. Sure, in some situations I just won’t play it, but then I’ve turned what could have been a live topdeck into a dead card. Assuming I’m not overreacting (and I have NOT done extensive testing outside of goldfishing), it feels like a sideboard card, and one that demands splashing a color you don’t really want to play otherwise.

    Affinity does seem like it might be the most well placed to take advantage of this card, as I could see turn 2-3 plays as being a lot more common, which MIGHT just give it enough of an edge to deny a similar advantage to other linear decks.

    In any case, I do plan to continue testing with this, and look forward to seeing how it works for you and the field as a whole.

  4. The end turn clause is too much to overcome. Shipping your opponents 7 cards and then passing is asking for trouble most of the time.

    There’s no denying certain game states in which you get perfect scenarios with the card, but how many unfavorable spots are we getting into in order to attain those? There are too many combo decks and other linear archetypes out there who would love for an opponent to play this card vs them.

    The card may be broken, but it would more likely happen in some zany quicken combo build than it would being added to an aggro deck.

    1. That’s why you’ll be casting it at instant speed on the end of their turn, to get to untap first with the new 7. Still, even on your turn, it’s a powerful way to clear the stack, enabling you to counter spells that say they can’t be countered or just a whole bunch of spells at once.

      This card has an effect of Power with some drawback, much like Cruise did, so expect to see people going out of their way to make the drawback go away. Personally I’m going to use Leyline for now, but I’m sure it’s going to become unnecessary once people figure out the correct shell.

      1. I didn’t mention Quicken in the article because I don’t think it’s very good. You cantrip, but what do you do with that extra card? Unless Quicken draws you an Instant, the card is wasted. Quicken is also pretty dead without an Undoing; I don’t think you want to be cantripping with no upside for U in this format. The decks that supposedly want Quicken are reactive decks, right? No Aggro deck wants to pass the turn and do stuff on your End Step. If Twin finds a way to slow down the game substantially, it could run this combo, but it still seems much worse to me than some other options.

        You mentioned Treasure Cruise and said that people will “go out of their way” to use this “power” effect in Modern. I’m sure you remember that Cruise didn’t require players to go out of their way at all – it rewarded you just for playing out your hand quickly and functionally was Ancestral Recall in the decks that played it. I think Undoing does the same thing – it slots effortlessly into fast Aggro decks that don’t need to splash jank like Quicken to fully benefit from the effect.

        1. Nobody’s talking about Quicken, I think it’s a ridiculous notion. However, your point about people not going out of their way to play the delve cards is mute. We are seeing Thought Scour be the number one cantrip – all of this started with Cruise, as people figured out the most efficient way to deliberately fuel graveyards. You don’t Thought Scour yourself just to get the extra card, you do it because it puts three cards in the yard and cycles itself, enabling things like Turn 2 Tasigur/Angler.

          Again, all of that started with Cruise. For a reason. We will see the same thing happen with Day’s Undoing, except this time it will be decks running Leyline (of Anticipation, in case it’s not crystal clear). MAYBE. I don’t know what the best way to break the card is, but that’s one of them. It might be the Affinity deck, but that’s honestly disgusting.

          1. There’s a big difference between Thought Scour (read Dark Ritual with ‘draw a card’ at it’s best and ‘replace me’ at its worst) and Leyline of Anticipation (draw me outside of your opening hand and be sad).

            I can see decks trying to run Quicken though – mostly because it replaces itself for 1 mana at it’s absolute worst. It also works well with Snapcaster Mage.

            It doesn’t play well with the Delve decks – you don’t really want to be running 4 Thought Scour and 4 Quicken, at some point you need more than fluff in your deck.

            I’m not too concerned about the Quicken combo – it’s a complete build around, not very good against counter-magic, and not good for blue decks not named Delver. Even then, I don’t see a Delver list being excited about tapping out for this.

            Creature decks are using Collected Company for velocity, so the only place I see it is in Burn replacing Treasure Cruise in the pre-ban era Burn lists.

    2. The thing is you can abuse tempo cards extremely well with this card. If you can Vapor Snag and then cycle hands thats essentially hard removal. Cards like the Shoals also get better if you essentially use free cards. I would expect Delver to be pretty strong with such a powerful card draw so that you can just leverage tempo spells. Also Tasigur and Gurmag Angler match very poorly against cards like Vapor Snag. Also if you cycle into a Disrupting Shoal and counter their next play you get the tempo swing again. After all the deck would just be about maintaining tempo and killing your opponent because they can really build up

  5. If this is remotely true, its about the most depressing thing I could’ve read about the Modern format.

    Luckily, the Chicken Little’s rarely have it right…

  6. Thankfully the card costs 3. That means it can be more easily interacted with than Treasure Cruise, although I do think the turn 2 Undoing from an affinity shell is brutal.

  7. A resolved Undoing empties both graveyards, setting Tarmogoyf to 0/1 and killing him if he has even a single damage marked before any player receives priority.

    Tarmogoyf really dies after resolving undoing? There is in-built tme stop on this card, which wears damage off creatures, state based actions aren’t checked before shuffling and ending the turn, so… Goyf is alive. Am I right or no? 🙂

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