Maegforadin, The Colossal

Changeling (This card is every creature type.)
When Maegforadin, The Colossal enters the battlefield, destroy all creatures that don't share a creature type with it.
When Maegforadin, The Colossal dies, return all creatures that don't share a creature type with it
from all graveyards to the battlefield under their
owners control.
"Wow. Thanks." -Everyone