Koma, Cosmos Serpent

Combos with Koma, Cosmos Serpent

The lines this card is part of, what it needs alongside it, and what the cards do together. An infinite result is the one that moves a deck's bracket.

• Esix, Fractal Bloom Timestream Navigator Infinite
  • Infinite turns
  • Lock
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Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.

Rulings

5 official rulings, in the order Wizards published them.

• 2021-02-05

  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.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Koma, Cosmos Serpent, whatever its commander.