Nicol Bolas the Rift Master

Flying
At the beginning of each upkeep create a 0/1
Warp Devil token creature with Defender and
put it onto the battlefield under your control.
{b}{r},Sacrifice six Warp Devil creatures:
Transform Nicol Bolas the Rift Master. Activate
this ability only whenever you can cast a sorcery.
"Chaos will rise."