Koma, Cosmos Serpent [Kaldheim Prerelease Promos] Unknown Event that player can't cast spells

that player can't cast spells or activate abilities and plays with their hand revealed

" —Davvol

we think you will enjoy creating your own unique civilization in Tapestry

This 100-new-card set is loaded with astounding new cards that are the stuff

or sail off the edge of the world and voyage to the moon—this expansion introduces an entirely new side board

Koma, Cosmos Serpent [Kaldheim Prerelease Promos] Unknown Event that player can't cast spellsSet: Kaldheim Prerelease Promos Type: Legendary Creature Serpent Rarity: Mythic Cost: {3}{G}{G}{U}{U} 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.