Deck Highlight: Legacy Bant Day’s Undoing

Legacy Bant Day's Undoing by Anuraag Das

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Today’s deck is a sweet one, and was piloted to a top four finish in the Magic Online Legacy Challenge by none other than ChannelFireball’s own Anuraag Das. It’s a Bant Snow deck, but with the twist of Day’s Undoing alongside Narset, Parter of Veils and Hullbreacher, which adds quite a bit of heat to the snowy wastes.


Header - The Game Plan

Control the board with Swords to Plowshares, Oko, Thief of Crowns and Ice-Fang Coatl, while denying the opponent resources with Hullbreacher and Narset. Finish the game with Uro, Titan of Nature’s Wrath or a Day’s Undoing, both of which lead to a huge resource advantage.

I like that this deck flips the script when it comes to what Snow decks typically do. It has the same powerful engine cards (Oko, Uro, Arcum’s Astrolabe), but the draw-denial aspect really punishes unprepared opponents and Day’s Undoing offers a huge swing that this deck usually doesn’t have access to. Plus, Hullbreacher into Day’s Undoing gives you a ton of mana to play with, which is convenient given how many extra cards you just drew.


Header - Key Cards

Narset, Parter of VeilsHullbreacherDay's Undoing

These three cards are what makes this deck really pop. Note that Hullbreacher and Narset do a lot of collateral damage in Legacy – shutting off Astrolabe, Brainstorm, Uro and more is a big advantage. I would generally not recommend casting Day’s Undoing without one of the two denial cards in play, though I suppose you can in a pinch.


Teferi, Time Raveler

Teferi adds another combo to Day’s Undoing, as you can use Teferi’s +1 ability to cast Day’s Undoing at the end of the opponent’s turn. It’s much worse than the Narset/Hullbreacher combo, but still does come up.


Arcum's Astrolabe

This is the best card in every Snow deck, as it basically makes it so you can cast every card regardless of what mana symbols are printed on it (while drawing a card and being an artifact for Oko to Elk-ify).


Force of Will (Borderless)Force of Negation

These decks tend to be a little slow, so having at least six free counters is crucial so you don’t fall too far behind. 


Carpet of FlowersSylvan Library

I like what these green enchantments offer, even if they aren’t a huge part of the deck. In particular, Carpet of Flowers is great right now, as it gives you a huge mana advantage against any blue deck (which is almost every opponent).


Header - Mulliganing

In general, this deck wants to see Arcum’s Astrolabe, free counters and cantrips in the opening hand, with Swords to Plowshares not far behind. Brainstorm and Astrolabe mean you can keep almost anything, which is pretty sweet.


Prismatic VistaBrainstormArcum's AstrolabeTundraSnow-Covered IslandSnow-Covered ForestMisty Rainforest

Keep. Drawing a card off Astrolabe and then using Brainstorm turn two will fix that flood right up. I would only mulligan this if I knew I was playing against an extremely fast deck.


PonderIce-Fang CoatlCarpet of FlowersSwords to PlowsharesTropical IslandSnow-Covered IslandTerminus

Keep on the play, mulligan on the draw. With two white cards and no white mana, as well as no free counters, this hand is too slow/inconsistent on the draw.


Header - Tips and Tricks

  • You can use Carpet of Flowers on either main phase, so it even works on the turn you play it.
  • Sylvan Library and Brainstorm are both great at setting up Terminus, though you have to remember that it only works on the first draw (so don’t get too fancy with your Sylvan).
  • Watch out for your opponent killing Hullbreacher or Narset in response to your Day’s Undoing. 
  • You should try and hold Brainstorm as long as possible, because it gets stronger the more you know about what you need in a particular game.


This deck adds another dimension to the snow deck, and one that’s both fun and powerful. If you’re looking for a break from snowy days, I’d recommend you try it out!


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