Malefic Scythe [Core Set 2021]

Malefic Scythe enters the battlefield with a soul counter on it.
Equipped creature gets +1/+1 for each soul counter on Malefic Scythe.
Whenever equipped creature dies, put a soul counter on Malefic Scythe.
Equip 1 (1: Attach to target creature you control. Equip only as a sorcery.)