King Cerberus

King Cerberus can't be blocked except
by three or more creatures.
Cards in graveyards can't
be the targets of spells or abilities.
When Underworld Cerberus dies, exile it
and each player returns all creature cards
from their graveyard to their hand.
"Fear me! Fear my flames!"
"Feel my thunder!"
"Your flesh will freeze!"
-King Cerberus' three heads