Arcane Foundry › Commanders › Koma, Cosmos Serpent
Koma, Cosmos Serpent
Legendary Creature — Serpent · {3}{G}{G}{U}{U} · Green/Blue commander
What Koma, Cosmos Serpent actually does
Read off the card by the same engine the Forge and Analyzer use — this is the mechanical classification, not a summary.
- Triggered ability · upkeepAt the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil.
- Activated abilitySacrifice another Serpent: Choose one —
- Static ability · restrictionThis spell can't be countered.
- Ability• Tap target permanent. Its activated abilities can't be activated this turn.
What a Koma, Cosmos Serpent deck needs
Plays as token engine (Koma's Coils). What the commander asks of the other 99 — read from the card and checked by hand.
- token payoffs and anthems (a 3/3 every upkeep, yours and theirs)
- sacrifice payoffs (the Coils are fodder for tempo and protection)
- interaction to hold the board
The Koma, Cosmos Serpent deck plan
The roles the Forge fills for this commander, and how many cards of each.
- 4× Evasion that does NOT target or attach — for a commander your own auras and equipment cannot legally touch
- 5× Creatures you are happy to sacrifice — a free sac outlet on the commander is worthless with nothing to feed it
- 8× A team pump that actually pumps tokens
- 5× Actually remove one problem permanent — preventing its damage is not removing it
- 9× Find the exact card the plan needs
- 2× Answer a spell or ability before it resolves
- 1× Answer a whole board at once
- 7× Refill your hand
- 2× Keep a permanent you control alive through removal
Best cards for Koma, Cosmos Serpent
Ranked by an engine that reads what each card does — its real cost, its delay and how reliably it works — rather than counting how often other people play it.
Evasion that does NOT target or attach — for a commander your own auras and equipment cannot legally touch
- Tetsuko Umezawa, Fugitive2 mana
- Glaring Spotlight1 mana
- Wonder4 mana
- Reverse the Polarity3 mana
- Garruk's Uprising3 mana
- Combine Chrysalis2 mana
- Inquisitorial Rosette2 mana
- Archetype of Imagination6 mana
Creatures you are happy to sacrifice — a free sac outlet on the commander is worthless with nothing to feed it
- Koma, Cosmos Serpent7 mana
- Koma, World-Eater7 mana
- Invasion of Segovia // Caetus, Sea Tyrant of Segovia3 mana
- Benthic Anomaly7 mana
A team pump that actually pumps tokens
- Patchwork Banner3 mana
- Finale of Devastation2 mana
- Beastmaster Ascension3 mana
- Heraldic Banner3 mana
- Assault Formation2 mana
- Jolrael, Mwonvuli Recluse2 mana
- Sylvan Anthem2 mana
- Weaver of Harmony2 mana
Actually remove one problem permanent — preventing its damage is not removing it
- Reality Shift2 mana
- Pongify1 mana
- Rapid Hybridization1 mana
- Resculpt2 mana
- Beast Within3 mana
- Nature's Claim1 mana
- Emerald Charm1 mana
- Naturalize2 mana
Find the exact card the plan needs
- Green Sun's Zenith1 mana
- Nature's Rhythm2 mana
- Neoform2 mana
- Celestial Reunion1 mana
- Worldly Tutor1 mana
- Reshape2 mana
- March of Burgeoning Life1 mana
- Mask of the Mimic1 mana
Answer a spell or ability before it resolves
- Mindbreak Trap4 mana
- Fierce Guardianship3 mana
- Force of Negation3 mana
- Force of Will5 mana
- Flare of Denial3 mana
- Pact of Negation0 mana
- An Offer You Can't Refuse1 mana
- Arcane Denial2 mana
Answer a whole board at once
- Desynchronization4 mana
- Wave Goodbye4 mana
- Whelming Wave4 mana
- Consuming Tide4 mana
- Oversimplify5 mana
- Selective Obliteration5 mana
- Needle Storm3 mana
- Evacuation5 mana
Refill your hand
- Mystic Remora1 mana
- Skullclamp1 mana
- Sylvan Library2 mana
- Curiosity1 mana
- Wizard Class1 mana
- Garruk's Uprising3 mana
- Herald's Horn3 mana
- Rhystic Study3 mana
Keep a permanent you control alive through removal
- Guardian Augmenter3 mana
- Saryth, the Viper's Fang4 mana
- Lost in the Maze2 mana
- Lightning Greaves2 mana
- Swiftfoot Boots2 mana
- Asceticism5 mana
- Eldrazi Monument5 mana
- Commander's Plate1 mana
Combos with Koma, Cosmos Serpent
Known combos from Commander Spellbook that Koma, Cosmos Serpent is a piece of, and how many decks list them.
- Koma, Cosmos Serpent + Esix, Fractal Bloom + Timestream Navigator232 decks
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