U/R Seismic Assault by axel_foley on MtGO

Creatures (4)
4 Swans of Bryn Argoll

Non-Creature Spells (14)
1 Day’s Undoing
4 Treasure Hunt
2 Swan Song
3 Molten Vortex
4 Seismic Assault

Lands (42)
4 Cascade Bluffs
4 Gemstone Caverns
5 Island
11 Mountain
2 Shivan Reef
4 Spirebluff Canal
4 Steam Vents
2 Swiftwater Cliffs
4 Temple of Epiphany
2 Wandering Fumarole

Sideboard (14)
1 Molten Vortex
1 Swan Song
2 Anger of the Gods
2 Ceremonious Rejection
1 Echoing Truth
1 Laboratory Maniac
3 Leyline of the Void
1 Mana Leak
1 Shattering Spree
1 Spell Pierce


There are a ton of unique decks in Modern, from combo decks that cheat in big monsters to control decks that mill the opponent out to aggro decks with unparalleled explosiveness. The deck we’re featuring today is really found nowhere else, and its breakdown of cards certainly indicates you’re in for an interesting experience when you play with or against it. Yup, you read that right, this deck plays 42 lands.

The reason for such a high land count is simple: this deck wants to have enough lands to be consistently discarding them to Seismic Assault and Molten Vortex, the deck’s central win condition. Seismic Assault decks have been a very fringe option in Modern for some time, and the printing of Molten Vortex allows for a more dedicated deck that tries to take advantage of this effect. Assault is preferable, due to it not costing any mana to active as many times as you want.

In order to facilitate this odd and somewhat awkward strategy, this deck plays a couple of enablers. Swans of Bryn Argoll is a very powerful creature with a unique ability attached to it. In this deck, it enables you to point a land at Swans in order to draw multiple cards, effectively being card advantageous for 0 or 1 mana. It’s also an evasive creature which can end the game quickly if need be. Treasure Hunt is an interesting effect that is very infrequently played, but it has a lot of value in decks with as many lands as this one. It has good odds of finding you the first Assault/Vortex, and beyond that can draw you many cards with just 1 spell.

Lastly, there are a couple of important role players in this deck. Firstly, Swan Song is an interesting and incredibly well positioned card for this deck. Being able to counter an instant, sorcery, or enchantment for 1 mana is great value, but what holds the card back is the 2/2 flyer that it gives the opponent. While this is frequently an issue for many decks, it’s not for this deck as either Seismic Assault or Molten Vortex need 1 land to deal with it. Day’s Undoing refills your hand when it’s run dry, drawing you into (on average) several more crucial lands, which can provide you with enough gas to finish the game off.

Here are the changes I would make going forward:


No changes.


-1 Molten Vortex

-1 Mana Leak

+1 Swan Song

+1 Shattering Spree

+1 Spell Pierce

This is day 254 of Spellsnare.com’s 2017 Deck of the Day column, where each day we’ll feature a different Standard, Modern, or Legacy deck that caught our eye. You can read day 253 here, where we featured a Modern control deck which uses a combo banned in Standard as a finisher.

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