Deviljho, Untimely Intruder

Trample
{2}{b}{r}{g}, sacrifice a blocked attacker you control
with power four or greater: Put this card onto the battlefield from your hand or the command zone tapped and attacking. Each creature blocking the sacrificed creature blocks Deviljho.
Whenever a creature that was dealt damage by Deviljho this turn is put into a graveyard, that creature's controller discards a card.