The 2021 Koma, Cosmos Serpent foil promo card is a mythic rare legendary creature from the Magic: The Gathering Kaldheim Promos set, featuring a complex upkeep ability and token generation.
2021 • Magic: The Gathering • Kaldheim Promos
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| Condition | Value | Source | Trend | Price Details |
|---|---|---|---|---|
$16.69 | Guide Estimate | 0% | ||
Raw / Ungraded
TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 19, 2026
The Koma, Cosmos Serpent foil promo card (card number 221s) is a distinctive entry in the 2021 Magic: The Gathering Kaldheim Promos set. As a mythic rare legendary creature of the Serpent subtype, this card commands attention in any collection due to its high mana cost of {3}{G}{U}{U} and its powerful seven-mana value. Designed by Jesper Ejsing, the card offers a sophisticated gameplay experience that rewards strategic planning and resource management. Koma, Cosmos Serpent provides a potent effect at the beginning of each upkeep, creating a 3/3 blue Serpent creature token known as Koma's Coil. This continuous token generation allows players to build board presence over time. The card also features a versatile activated ability that requires sacrificing another Serpent to choose between tapping a target permanent or granting Koma indestructible until end of turn. This flexibility makes it a valuable asset in various strategic situations within the game. The foil treatment on this promo card highlights its status as a special release, appealing to collectors who appreciate the aesthetic quality of foil finishes in Magic: The Gathering. The card's design and mechanics reflect the intricate world-building of the Kaldheim plane, offering both visual and gameplay depth. Koma, Cosmos Serpent is a Mythic Rare Legendary Creature — Serpent from the 2021 Kaldheim Promos set. The card features a foil finish and carries the mana cost {3}{G}{G}{U}{U}. Its unique abilities and mythic rare status make it a sought-after item for enthusiasts of the game.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Koma, Cosmos Serpent
Game
Magic: The Gathering
Rarity, print treatment, and game-specific stats for this card.
Mythic Rare
Jesper Ejsing
Card Stock
English
Foil
{3}{G}{G}{U}{U}
Legendary Creature — Serpent
6 / 6
G, U
Abilities, attacks, oracle text, and flavor text printed on the card.
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.
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