Calamity Pillager

When Calamity Pillager enters the battlefield, Pillage, then Pillage again. (Reveal the top card of
your library. You may sacrifice any number of permanents that share a card type with the revealed
card with a combined converted mana cost greater
than or equal to the converted mana cost of the
revealed card minus 1. If you do, you may play the revealed card without playing it's mana cost.
Then repeat this progress.)