Koma Cosmos Serpent

“This spell can't be countered. <br> At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil. <br> Sacrifice another Serpent: Choose one — <br> • Tap target permanent. Its activated abilities can't be activated this turn. <br> • Koma, Cosmos Serpent gains indestructible until end of turn.”