Stormscape Battlemage

Kicker {W} and/or {2}{B} (You may pay an additional {W} and/or {2}{B} as you cast this spell.) When this creature enters, if it was kicked with its {W} kicker, you gain 3 life. When this creature enters, if it was kicked with its {2}{B} kicker, destroy target nonblack creature. That creature can't be regenerated.