Lady Migis Tlachtga

Lifelink, deathtouch
Ambush costs of spells you control are reduced
by {2}. This effect can't reduce the mana in that
cost to less than one mana.
Ambush {u/b}{b/r}{r/g} (If an opponent attacks you with
two or more creatures, you may cast this spell for its
ambush cost and you may cast it as if it had flash.)