[ACT](VC):[COST][Discard one or more cards from hand with the sum of their grades being 3 or greater], search your deck for up to one grade 4 card, ride it as [Stand], and shuffle your deck. At the end of this turn, retire that unit, choose a grade 3 card from your soul, and ride it as [Rest]. [AUTO]:When this card is rode upon by "Chronotiger Rebellion", [COST][discard a card from hand], and one of your vanguards gets [Critical] +1/drive +1 until end of turn.