The Butcher of Skullyard

Flying, First Strike
When The Butcher of Skullyard enters the battlefield, destroy target Legendary Creature
Whenever a Legendary Creature dies, put a
+1/+1 counter on The Butcher of Skullyard.
Whenever a permanent with a bounty counter
on it is put into a graveyard, you may have The Butcher of Skullyard deal damage equal to its
power to target Legendary Creature.