It That Should Be Forgotten

Flash, Deathtouch
Enters the battlefield with X +1/+1 counters, where X is the number of permanents sacrificed this turn.
Whenever this card attacks, the defending player must sacrifice an artifact or creature they control.
When this card becomes the target of a spell or ability an opponent controls, that player sacrifices an artifact or creature they control.
{4}{b}{g}: Return from Graveyard to Hand