Koma, Cosmos Serpent [Kaldheim Prerelease Promos] XY124 Set: Oversize Cards Type: Artifact

Set: Oversize Cards Type: Artifact — Artifact Rarity: Rare Cost: {7} Mirror Mirror enters the battlefield tapped

Set: Black & White: Boundaries Crossed Type: Fire Rarity: Holo Rare Retreat cost: Colorless

Set: Weatherlight Type: Artifact Rarity: Uncommon Cost: {1} {T}: Exile the bottom card of target player's graveyard

sacrifice Sea Serpent

Koma, Cosmos Serpent [Kaldheim Prerelease Promos] XY124 Set: Oversize Cards Type: ArtifactSet: 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.