[The Procrastinator]

I had the exact same party, rogue-monk-ninja, but I got bored of it quite soon because it was just too fragile. I made the mistake of focusing exclusively on speed and dex and choosing lightweight races (hobbit, faerie, felpurr). Maybe I'll try another stealth trio sometimes, but I'll put a lot more points on strength. More damage, more stamina. Dex is cool, but those races have high dex and these classes have stealth anyway, which is the whole point of this party. I'd say strength is absolutely essential with a stealth trio. Of course, a bishop would make this party extremely more powerful, but it would miss the point somehow.