Serra, Archangel Supreme

: When Serra, Archangel Supreme enters the battlefield, you get an emblem with "Whenever you gain life, target opponent losses that much life"
+2: The next time you would cast a spell this turn, you gain life equal to it's converted mana cost plus five.
-7: You gain 50 life, exile up to 5 target permanents, and create two 4/4 white angel creature tokens with vigilance and flying called Serra angel..