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Koma, Cosmos Serpent

tleAvatar: The Last Airbender Eternal#51mythic
{3}{G}{G}{U}{U}
Treatments
BorderlessSource MaterialFull ArtFoil
Market price · TCGplayer
updated 2026-06-21
Nonfoil$3.00
Low $1.17Mid $3.17Buylist
Foil$5.00
Low $3.85Mid $5.25Buylist
All finishes · 30d
updated 22h ago
Nonfoil$3.00 -15.5%
Foil$5.00 +2.5%
Card details
Artist
Viacom
Frame
legendary, inverted
Language
EN
Border
borderless
Security stamp
oval
Format legality
AlchemyNot legal
BrawlLegal
CommanderLegal
DuelLegal
Future StandardNot legal
GladiatorLegal
HistoricLegal
LegacyLegal
ModernLegal
OathbreakerLegal
Old SchoolNot legal
PauperNot legal
Pauper CommanderNot legal
PennyLegal
PioneerLegal
PreDHNot legal
PremodernNot legal
StandardNot legal
Standard BrawlNot legal
TimelessLegal
Tiny LeadersNot legal
VintageLegal
Oracle text

Legendary Creature — 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.

P/T6/6
Abilities
StaticThis spell can't be countered.
TriggeredAt the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil.
ModalSacrifice another Serpent: Choose one — • Tap target permanent. Its activated abilities can't be activated this turn. • Koma gains indestructible until end of turn.
Plays as
Cant Be CounteredCreature Token Maker
Flavor & art
Illustrated by
Viacom
Rulings
  • WotCFeb 5, 2021

    A spell or ability that counters spells can still target Koma, Cosmos Serpent. When that spell or ability resolves, Koma won't be countered, but any additional effects of the countering spell or ability will still happen.

  • WotCFeb 5, 2021

    Activated abilities contain a colon and appear in the form "[Cost]: [Effect]." Some keywords such as equip are activated abilities and will have colons in their reminder texts. Loyalty abilities of planeswalkers are also activated abilities.

  • WotCFeb 5, 2021

    If you choose the first mode of Koma's activated ability, you can choose a permanent that's already tapped as the target. The effect stopping its activated abilities will still apply.

  • WotCFeb 5, 2021

    The first mode of Koma's activated ability doesn't stop static abilities from affecting the game, and it doesn't stop triggered abilities from triggering. Unlike similar effects, it does stop mana abilities from being activated. Most activated abilities that produce mana as they resolve are mana abilities.

  • WotCFeb 5, 2021

    You can't sacrifice Koma itself to activate its last ability, but you can sacrifice any other Serpent you control, including Koma's Coil.