Stride [AUTO](VC):When this unit's attack hits a vanguard, you may choose one of your rear-guards, and bind it face up. If you do, search your deck for up to one grade 3 card, call it to (RC), shuffle your deck, and at the end of your turn, put the unit called with this effect on the bottom of your deck. If you put a card on the bottom of your deck this way, choose a card bound with this effect from your bind zone, and call it to (RC).