Illidan, the Betrayer

When Illidan enters play, sacrifice two creatures.
If you can't, exile Illidan.
When Illidan dies, return to play under your
control with +2/+2.
If Illidan blocks or is blocked by a Demon, he
gains deathtouch until end of turn.
{t}{b}{g}, lose 4 life: Illidan gains flying.
{t}{b}{g}, lose 4 life: Illidan gains first strike.
Sacrifice two creatures: Regenerate Illidan.
You dare to enter my realm...