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 gains indestructible until end of turn.

"Give her back... Give back my mother!"