How much is Koma, Cosmos Serpent worth?

As of August 2026, Koma, Cosmos Serpent from Kaldheim Promos has a market value of €17.45. Track price trends and find local trades on Lootstack.

What set is Koma, Cosmos Serpent from?

Koma, Cosmos Serpent is from the Kaldheim Promos (PKHM) expansion, part of the Magic: The Gathering trading card game.

What rarity is Koma, Cosmos Serpent?

Koma, Cosmos Serpent is a Mythic card from the Kaldheim Promos set in Magic: The Gathering.

What type of card is Koma, Cosmos Serpent?

Koma, Cosmos Serpent is a Legendary Creature — Serpent from the Kaldheim Promos set in Magic: The Gathering.

Is Koma, Cosmos Serpent legal in Modern?

Koma, Cosmos Serpent is Legal in Modern. Check all format legalities for this Magic: The Gathering card on Lootstack.

Koma, Cosmos Serpent - Kaldheim Promos

Card Availability

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Legalities

LEGAL

Brawl

LEGAL

Commander

LEGAL

Duel

UNKNOWN

Future

UNKNOWN

Frontier

LEGAL

Historic

LEGAL

Legacy

LEGAL

Modern

UNKNOWN

Oathbreaker

UNKNOWN

Pauper

LEGAL

Penny

LEGAL

Pioneer

UNKNOWN

Standard

LEGAL

Vintage

Rules & Rulings

2/5/2021

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

2/5/2021

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.

2/5/2021

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.

2/5/2021

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.

2/5/2021

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.