Jov'dathok, Entropic Maw

Haste, trample
As an additional cost to cast Jov'dathok, you may sacrifice any number of creatures, each creature sacrificed this way pays for {1} or one mana of any
of its colours.
Whenever Jov'dathok attacks, each opponent sacrifices a creature at random and then discards
a card at random. You draw a card and return a
card at random to your hand.