Hidden Dark Arms, Yobigatana (X-BT03/0037EN) (X-BT03)

[Equip Cost] [Pay 1 gauge]
When this card attacks and destroys your opponent's monster or deals damage to your opponent, choose an "Oni Assassin" on your field, look at the top four cards of your deck, put up to one card from among them face down into the chosen card's soul, and put the rest on the bottom of the deck in any order.