Retaliate

Put three +1/+1 counters on target creature you
control. Then, it fights target creature you don't
control.
Revenge {b}{r}{g} (If you were dealt damage by
or lost life to an opponent's spell or permanent before
your turn started, you may cast this card for its
revenge cost. If you do, you lose life equal to the
difference between this card's converted mana cost
and its revenge cost.)