Sword of the Accursed

Equipped creature get +3/+0, has to attack
each combat if able, and has indestructible.
When Sword of the Accursed enters the
battlefield under your control equip target
creature you control, if you can't sacrifice
Sword of the Accursed.
At the beginning of each end step sacrifice
equipped creature, then the player to your left
gains control of Sword of the Accursed.
You can't unequip Sword of the Accursed from equipped creature. Equip {u/b}