Command Change Custom Event

... Actually, why not use Umaro? The biggest issue you'd run into with making Banon equippable is having a bit free to determine what he can be equipped WITH. But Umaro can't be equipped, so he'd be unaffected by you using that bit to determine what Banon can use. (It would mean that Banon would be able to equip the Umaro-only relics, but you can't have them by that point anyway so it shouldn't actually change anything.)