Thunder of Pitch Black Undercover, Viola (RR)

AUTO: When this unit is placed on (RC), if you have a vanguard with "Undercover" in its card name, perform one of the following:

- COST[EB2] Search your deck for up to one "Monitored Tryst", discard it, and shuffle your deck.

- COST[CB1] Choose an undercover gauge and turn it face up, add it to your hand if it is a card with "Undercover" in its card name, turn it face down if it is not.

Knight of Faint Shadow, Mornes (C)

AUTO (RC): When this unit attacks a vanguard, COST[EB4] choose one of your opponent's rear-guards, and put it to the bottom of your deck.