Esprit des Six Samouraïs SDWA-FR012

Once per turn, you can EITHER target 1 "Six Samurai" monster you control, equip this card to the target, OR unequip this card and Special Summon it in face-up Attack Position. While it is equipped by this effect, the equipped monster gains 500 ATK/DEF. If the equipped monster destroys an opponent's monster by battle, draw 1 card. (A monster can only be equipped with 1 Union Monster at a time. If the equipped monster would be destroyed, destroy this card instead.)