Hellkite Ravager

Flying
{4}{b}{r}{g}: Monstrosity 3 (If this
creature isn't monstrous, put 3 +1/+1 counters
on it and it becomes monstrous.)
When Hellkite Ravager becomes Monstrous,
target player sacrifices a creature, a planeswalker,
an artifact, an enchantment and a land.