Koma, Cosmos Serpent
This spell can't be countered. At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil. Sacrifice another Serpent: Choose one — • Tap target permanent. Its activated abilities can't be activated this turn. • Koma gains indestructible until end of turn.
A ready-made Koma decklist
Complete 100-card Simic deck, free to read, with prices and buy links.
How Koma decks play in EDH
Koma, Cosmos Serpent is a Simic commander in blue and green costing 3GGUU, and its legendary creature - serpent line shapes the whole deck around it. It makes tokens, so the deck wants ways to pump a wide board and to turn spare bodies into cards or damage. Sacrifice is built into the card, which pairs it with cheap recursive creatures and payoffs that trigger when something dies. The cards below are the ones Koma, Cosmos Serpent decks actually play most often, grouped by the job they do.
Most-played cards
20 cards · about $116Play rates from EDHREC. Prices from Scryfall, refreshed daily.
Ramp (3)
Card draw (2)
Counterspells (1)
Creatures (6)
Synergy & payoffs (8)
Build the full 100
Grimoire generates a complete, Commander-legal Koma, Cosmos Serpent 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 KomaKoma deck questions
What colours can I use in a Koma, Cosmos Serpent deck?
Koma, Cosmos Serpent has a Simic colour identity, so every card in the deck must be blue and green or colourless. That includes mana symbols in rules text, not just casting cost.
What are the best cards for Koma, Cosmos Serpent?
The cards played most often in Koma, Cosmos Serpent decks include Verdant Kraken, Radagast of Rhosgobel, Wizard's Staff. 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 Koma, Cosmos Serpent deck cost?
The 20 most-played cards shown above come to roughly $116 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 Koma, Cosmos Serpent 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.