Leviathan of Envy

trample
whenever a creature Enters the battlefield under your control that has more power than Leviathan of Envy put X +1/+1 counter plus one on Leviathan of Envy where X is that creature's power and toughness
if Leviathan of Envy has 5 or more +1/+1 counters on him {3} he gains fight target creature you do not control