IX, Aeon of Nihilty

Flash, Deathtouch
Aeon's Will - This spell can't be cast from your hand and can't be countered.

Path of Nihility - If two or more cards entered a graveyard this turn, you may exile IX from your hand, you may cast IX as long as it is exiled.
Nihility Incarnate - Whenever this creature enters or attacks choose one:
• Target player mills ten cards.
• Tap all creatures target player controls and put a stun counter on each.