I think the question could have been better phrased: "Which tricks require the use of a pass?"
Truth be told, not that many. Ironically, the school of thought that distances method from effect is pretty much opposed to using it in your example, the ACR. The best example I can think of where a pass is 100% necessary is Dr. Daley's "Cavorting Aces"
Link: http://www.youtube.com/watch?v=5MEqF00O5Bg (for the record, not me!).
Cheers,
David.
...well t0aster...some of them! Check out my post for an example of a trick that DOES require a pass - no substitution will work.
Cheers,
David.
It's sort of a silly question to ask, like saying "what construction projects require the use of a drill?" A lot of them do, and a lot don't, and those that do use it can be circumvented with the use of another sleight.
I see the video and I'm not convinced that a pass is necessary. Two palms, one top palm and one bottom, and one slip involving two cards can duplicate the effect. A bit more complex, but doable. I would use a pass though...