The Seal of Orichalcos was originally printed for use by UDE staff in the Orichalcos Challenge a special event that challenged players to duel members of UDEs staff, who used decks with unfair advantages
If you use Barian's Force, you can +1 materials
After destruction, Recruit does not depend on the location, so even if you use it as a cost for Boss On Parade, it will summon each other and even specialize the fighters in your hand
Is it possible to play an active part only in the overseas version
Additionally, Charge has a second effect that lets you discard a card to search your Boot-Up Admiral, giving you consistent access to your boss without needing multiple copies
This effect isn't once per turn either, so if you have a way to attack with Vampire Fraulein multiple times, or multiple copies of it, you can potentially steal all of your opponent's Monsters for your own use