Legendary Creature — Serpent

Koma, World-Eater

Mana value7EDHREC#2,256

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The Commander

This spell can't be countered.

Trample, ward {4}

Whenever Koma deals combat damage to a player, create four 3/3 blue Serpent creature tokens named Koma's Coil.

Guide

Gameplan

Ramp hard into Koma, then connect for commander damage to flood the board with 3/3 Coils and snowball into an overwhelming attack. You play a midrange ramp/beatdown shell that protects Koma, makes him bigger with anthems and trample-pushers, and converts repeated hits into a token army that closes games.

Strengths

Uncounterable, ward , and trample make Koma extremely resilient and hard to chump-block profitably
Each connection nets twelve power across four bodies, snowballing the board fast
Sacrifice fodder and token synergies fuel aristocrats, convoke, and go-wide payoffs
Simic gives access to the best ramp and card advantage in the format

Weaknesses

Seven mana and combat-dependent—he does nothing the turn he lands without haste
Edict effects, exile, and -X/-X bypass ward and trample entirely
No evasion beyond trample; tall blockers and fogs can stall the engine
Removal-light colors mean you struggle to interact with opposing combos

Key Cards

Lightning Greaves — Grants haste so Koma can swing the turn he resolves and dodge sorcery-speed removal.
Rogue's Passage — Makes Koma unblockable to guarantee combat damage and the four-token trigger.
Cultivate — Reliable ramp that accelerates you toward the seven-mana cast a turn early.
Craterhoof Behemoth — Turns a board full of Koma's Coils into an instant lethal trample alpha strike.
Doubling Season — Doubles the Coil tokens to eight 3/3s per hit, overwhelming the table immediately.

Upgrade Path

Lean into token doublers (Doubling Season, Parallel Lives) and evasion enablers (Rogue's Passage, Whispersilk Cloak) so every swing is guaranteed and explosive. Add fast mana and ramp (Sol Ring, Nature's Lore, Three Visits) to deploy Koma ahead of curve, plus protection like Heroic Intervention and Tamiyo's Safekeeping. Top-end finishers such as Craterhoof Behemoth or an aristocrats drain package convert the Coil swarm into immediate wins.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Repeated Koma hits build a wide Coil army that wins through combat
▸Overrun effects like Craterhoof Behemoth or Overwhelming Stampede turn tokens lethal
▸Commander damage from a buffed, trampling Koma
▸Aristocrats drain (Blood Artist, Zulaport Cutthroat) sacrificing Coils

Archetypes

Tokens / Go-Wide — Koma manufactures four 3/3 bodies on every connection, feeding overrun and anthem effects.
Aristocrats — Endless Coil tokens make perfect sacrifice fodder for drain and value engines.
Big Mana Midrange — Simic ramp powers out Koma and the haste/protection enablers that make him swing safely.
Voltron-ish Beatdown — Trample and ward let you pump Koma to deal commander damage while spawning tokens.