Defend the Innocent

Choose target creature you control. If you spent {w} to cast Defend the Innocent, that creature gains first strike until end of turn. If you spent {g} to cast Defend the Innocent, put a +1/+1 counter on that creature. If you spent {w}{g} to cast Defend the Innocent, you may pay 2 life. If you do, that creature gains indestructible until end of turn.