Nimleon, Smite-Hand

First strike
As long as your devotion to white is less than
five, Nimleon doesn't have first strike.
At the end of combat on your turn, if a creature
was put into a graveyard from combat this turn,
you may pay 3 life. If you do, you may destroy
target creature with power X or less where X is
the number of creatures that attacked this turn.