[@pugbutter] When it comes to tremere, I'm perfectly okay with you becoming overpowered. That said, you have to survive long enough to get there, while remembering you're in a city filled with vampires infinitely more capable of ending you instantly than your magic could ever protect you against.

When it comes to dice rolls, it's going to be a very in-the-moment kind of decision. Using your example, if you're actively trying to distract someone to slide something into their pocket (yea, I know why you're asking) then that would be dexterity + subterfuge. If they're already distracted, and you just need to take advantage of that without causing a scene, then you're looking at composure + larceny. Something more revolved around taking advantage of timing to, say, drop it into a bag while no one is looking could be wits + dexterity.

Essentially; Make your character flavorful, and don't go fishing for min-maxed skill combinations. If you do, that's fine, but don't expect to just be able to rely on those to constantly get you what you want. It's my job as story teller to insure the rolls I'm calling for are the ones that best fit the circumstance, and the game provides me with a large canvas to make that happen. Personally, I'm a big fan of odd attribute-skill combinations for rolls.