Millennium Blades - Doomtown Crossover Pack

from the publisher:

The cards in Doomtown feature a keyword called “Holdup” which allows you to rob another player’s RP, or take out one of their singles (their choice). This is based loosely on the call-out mechanic in the original Doomtown. Target high-value cards that your opponent can’t afford to lose in order to make off with their Rank Points!