[JP] Fast Lightning in the Dark Night Undercover, Viola [Super Brave Detonation - DZ-BT09/036 (RR) 2025]

[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 [Energy Blast (2)], search your deck for up to one "Monitored Tryst", discard it, and shuffle the deck.
•COST [Counter Blast (1)], choose a card from your undercover gauge, turn it face up, put it into hand if it has "Undercover" in its card name, and turn it face down if not.