[perhaps slightly OT] Steve Jackson's Munchkin

[Voadam]

http://www.sjgames.com/munchkin/game/

It's a non-collectable card game. It works in a similar fashion to most CCGs. (The rules on on the above page if you want details). It is definitly a silly game and a great party game or something to fill a gaming session when the GM's sick.

Nothing quite like unleashing the laser-dazer-phophaser-bananna-danana-bobaser duck taped to the mace of sharpness on the ancient-huge-last-of-it-race-baby Pukachu-with it's mother.

And there are d20 versions, hardcover 32 page books I believe with the same art.

 

[Wycen]

About half the time I play Munchkin the same woman wins. I think mostly because one guy usually goes Gronka (fixated destructively) on one person and those two drag the rest of us down while she sneaks up for the win.

 

[Ankh-Morpork Guard]

I can never seem to win at Munchkin, but I'm always a pain in the neck for whoever DOES win, and that's all that counts.