Not a bug.
A hero can only select Cube powers of items that the hero could equip. Oathkeeper is a Mighty Weapon and therefore can only be selected as a power by Barbarians because they’re the only class that can equip one.
Not a bug.
A hero can only select Cube powers of items that the hero could equip. Oathkeeper is a Mighty Weapon and therefore can only be selected as a power by Barbarians because they’re the only class that can equip one.