There are 5 different decks for Streets of New Capenna. You will be sent one at random unless otherwise specified, subject to availability.
The decks are:
Bedecked Brokers - Green/White/Blue
Cabaretti Cacophony - Red/Green/White
Maestros Massacre - Blue/Black/Red
Obscura Operation - White/Blue/Black
Riveteers Rampage - Black/Red/Green