Tiamat, Prime Evil

Flying, first strike, vigilance, trample, lifelink, indestructible
Tiamat, Tyrant of Baator costs {1} less to cast for
each color among permanents you control.
"I have seen danger far and wide, big and small,
from krakens to demons. Yet none have come close to
Tiamat. Now she's back and she hungers. Brace yourselves: the Progenitor of Hell has returned."
-Hydrana, High General