User blog comment:Nuclrdmntr/Miss Fortune, Vayne, or Caitlyn?/@comment-4834593-20130221120159

All champions look good for you. Vayne is normally really passive early game, but if you see an opportunity, your E and the right support (Alistar, Leona, someone like that) can easily give you a kill.

Miss Fortune is a good example of a hyper-aggressive uber-annoying poker, with her constant Q harras.

Caitlyn is also a good poker with her passive and her Q, and just her insane range in general.

Also, you could also pick Tristana for passive-agressive farmer. She's a hyper-carry like Vayne or Kog'maw that needs to focus on farming, but if you have for example Leona support, a right timed W will surely give you a kill. Only warning is that she is pretty bad mid-game.