The Headless Horseman

Menace, trample

Whenever a creature dealt damage by The Headless Horseman this turn dies, you may create
a Head token attached to The Headless Horseman
and exile that creature under it. Then exile each other Head token attached to The Headless Horseman. (A Head token is an Aura enchantment with 'Enchanted creature gets +1/+1
and has all abilities of the creature exiled with this token.')