Wings of Rotten Corpses

Flying, menace, haste
Whenever Wings of Rotten Corpses enters the battlefield and/or attacks, each player sacrifices
a nonland permanent.
{1}{b}{b}: Exile a nonland card in any graveyard,
Wings of Rotten Corpses gets a +1/+1 counter
equal to the converted mana cost of the card
exiled this way.