Skullkrox, Reborn Tyrant

{8}{b}{r}, Exile seven other cards from your
graveyard: Return Skullkrox, Reborn Tyrant
from your graveyard to the battlefield tapped.
At the beginning of each player's upkeep, that
player sacrifices a multicolored creature with
power and toughness greater than 5: Skullkrox,
Reborn Tyrant gains indestructible until end
of turn. If the sacrificed creature was legendary,
put 4 +1/+1 counters on Skullkrox, Reborn
Tyrant.