Vertigo Spawn | Magic: The Gathering
Formats Vertigo Spawn is Legal in
Official Oracle Text for Vertigo Spawn
Whenever Vertigo Spawn blocks a creature, tap that creature. That creature doesn't untap during its controller's next untap step.
Official Rulings for Vertigo Spawn
2/1/2006 : If two Vertigo Spawns block the same creature, both abilities trigger, but each only affects the creature during its controller's next untap step. The creature can untap during its controller's untap step following that one.