Limit Break 4 (This ability is active if you have four or more damage): At the beginning of your main phase, you may pay the cost. If you do, choose one of your rear-guards with "Duo" in its card name, return it to your hand, choose one of your rear-guards with the same card name as that unit, and return it to your hand.
: When your other unit is returned to your hand from , this unit gets +3000 until end of turn.