Headless horseman

Haste, Sacrifice a pumpkin: Regenerate.
Persecute-(if this creature attacks and defending
player controls a creature with less power it must be
blocked this turn.)
Germinate-(If this creature is blocked put a seed
counter on the blocking creature. If creatures with seed counters die pay {x}{x}. X is equal to seed counters. If
you do put a copy of that creature into play, except it is
a green 0/0 pumpkin token creature with +1/+1
counters equal to seed counters it had)