Koma, Cosmos 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, Cosmos Serpent gains indestructible
until end of turn.
——{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
Question Your Own Belief.