Arcana: IV. The Emperor Persona - :When this unit is placed on , if you have a 〈P4〉 vanguard with "Protagonist" in its card name, retire all of your other rear-guards with "Kanji Tatsumi" in their card names, and put a Take-Mikazuchi token as this unit's persona gauge. :When this unit is placed on , if you have a 〈P4〉 vanguard with "Protagonist" in its card name, [], choose one of your opponent's rear-guards, and retire it.