Koma Cosmos Serpent Rainbow Foil

“<div class="SecretLair"><strong> Monstrous Magazines</strong></div><br>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.”