Astrea, Redeemer of Sins

Flying, Haste, Trample
When this creature attacks if you control a demon
you lose 3 life and draw a card, then if you control
a dragon deal 3 damage to any target, then if you
control an eldrazi sacrifice all other creatures you
control then transform Astrea, Redeemer of sins
When this creature dies create 2/2 black demon
with flying, a 2/2 red dragon with flying, and a
2/2 colorless eldrazi with annihilator 2.