Seymour Flux

Bmono-black{4}{B}$0.19
Legendary Creature — Spirit Avatar
Seymour Flux card art

At the beginning of your upkeep, you may pay 1 life. If you do, draw a card and put a +1/+1 counter on Seymour Flux.

Build a deck with Seymour Flux
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How Seymour Flux decks play in EDH

Seymour Flux is a mono-black commander costing 4B, and its legendary creature - spirit avatar line shapes the whole deck around it. It cares about +1/+1 counters, so counter-doubling effects and creatures that grow on their own carry the deck. It draws extra cards, so the deck can afford a lower curve and lean on volume. The cards below are the ones Seymour Flux decks actually play most often, grouped by the job they do.

Most-played cards

20 cards · about $119

Play rates from EDHREC. Prices from Scryfall, refreshed daily.

Ramp (1)

Dark Ritual
Dark Ritual
$0.44

Card draw (4)

Summon: Anima
Summon: Anima
$0.22
Phyrexian Arena
Phyrexian Arena
$1.59
Night's Whisper
Night's Whisper
$0.31
Sheoldred, the Apocalypse
Sheoldred, the Apocalypse
$79.35

Removal (2)

Bogslither's Embrace
Bogslither's Embrace
$0.19
Astarion's Thirst
Astarion's Thirst
$2.48

Creatures (4)

Gurgling Anointer
Gurgling Anointer
$0.11
Kagemaro, First to Suffer
Kagemaro, First to Suffer
$2.88
Gray Merchant of Asphodel
Gray Merchant of Asphodel
$0.81
Crypt Ghast
Crypt Ghast
$12.41

Synergy & payoffs (8)

Animation Module
Animation Module
$2.38
Darkness Descends
Darkness Descends
$0.21
Ring of Xathrid
Ring of Xathrid
$0.55
Blight Rot
Blight Rot
$0.22
Jet Medallion
Jet Medallion
$12.90
Sign in Blood
Sign in Blood
$0.33

Lands (1)

Forge of Heroes
Forge of Heroes
$0.32

Build the full 100

Grimoire generates a complete, Commander-legal Seymour Flux decklist with a written strategy, a full mana base and live prices — from the whole card pool, or only from cards you already own.

Start with Seymour Flux

Seymour Flux deck questions

What colours can I use in a Seymour Flux deck?

Seymour Flux has a mono-black colour identity, so every card in the deck must be black or colourless. That includes mana symbols in rules text, not just casting cost.

What are the best cards for Seymour Flux?

The cards played most often in Seymour Flux decks include Gurgling Anointer, Animation Module, Bogslither's Embrace. The full list of staples above is grouped by the job each card does, so you can see the deck's skeleton rather than just a pile of names.

How much does a Seymour Flux deck cost?

The 20 most-played cards shown above come to roughly $119 at current market prices. A complete 100-card build costs more, and Grimoire can generate a budget version instead if you set a price ceiling.

Can I build a Seymour Flux deck from cards I already own?

Yes. Import your collection into Grimoire and choose "my cards" when you build. The generator will only use cards you actually own, and the Missing Cards page shows what you would need to buy to finish any list.

Other mono-black commanders

Ob Nixilis of the Black OathTormod, the DesecratorBoomerang, Blade FlingerInvasion of Fiora // Marchesa, Resolute Monarch