Double Trouble is a R Assassin Action - Attack card from Flesh and Blood (Nuu Blitz Deck, NUU).
R
Nuu Blitz Deck (NUU)
Card Text
Stealth
If you've played or activated 2 or more attack reactions this chain link, this gets +2{p} and "When this hits a hero, banish the top 2 cards of their deck."