When Headsplitter enters the battlefield, create a 1/1 black Assassin creature token with
menace (This creature can't be blocked except by two or more creatures.), then attach Headsplitter to it.
Equipped creature gets +1/+0.
Equip
(
: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)