Knife Dad

All non-creature artifacts have "{2}, {t}, Sacrifice
this artifact: Knife Dad's controller gains 3 life.
Only Knife Dad's controller may activate this
ability."
Whenever a non-token artifact enters the
graveyard from the battlefield, create a Knife
artifact equipment token with Equip {0} and "Equipped creature has +1/+0"
Knife Dad has first strike and trample as long as
there are 4 or more equipments attached to him.