Orzka, Fallen Angel

Flying, protection from Demons
When Orzka, Fallen Angel Attacks, Exile Target creature defending player controls with power
less than or equal to Orzka's power. Put a +1/+1 counter on Orzka for each creature exiled this way.
You may cast cards exiled from Orzka and spend
mana as though it were mana of any color to cast creatures this way.