Greater Spire

{3}{b}{u}: Larva Mutation - Remove 1 Larva counter from a controlled Zerg Hatchery, Zerg Lair, or Zerg Hive to create either a 1/4 green and blue Mutalisk creature token with Flying or a 4/1 blue and black Zerg Corruptor creature token with Flying.


Rapid Regeneration - At the beginning of your upkeep, Mutalisks that have taken combat damage gain +0/+1.