Damara, Deft Saboteur

Flash
Damara, Deft Saboteur can't be blocked as long
as it's attacking a site or is attacking alone.
{5} -- Ultimate: Put a card an opponent owns
from outside the game into exile face down. For
as long as that card remains exiled, you may cast
it and spend mana as though it were mana of any
color to cast it.(Ultimate abilities can only
be used once.)