
Koma, Cosmos Serpent
Some links are affiliate links — if you buy through them Mauldron may earn a commission, at no extra cost to you. How this works.
Build around Koma, Cosmos Serpent as your commander →
Create a free account to add this card to a deck or collection — log in if you have one.
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.
What it does
Tagged as Protection · Tokens · Sac outlet — the jobs the deck report counts it toward.
Official rulings
- 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. (2021-02-05)
- 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. (2021-02-05)
- 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. (2021-02-05)
- You can't sacrifice Koma itself to activate its last ability, but you can sacrifice any other Serpent you control, including Koma's Coil. (2021-02-05)
- 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. (2021-02-05)
Printings & prices
Every set Koma, Cosmos Serpent has been printed in, with the art, the finishes and the market price of each — the headline price above is the cheapest of these.
Cards like this
The most-played cards that do something similar to Koma, Cosmos Serpent, and are playable in its colours.







