So I was wondering if this character concept could be viable with D&D, preferably 3.5:

Think of it as a cross between the Juggler job from Final Fantasy Tactics Advance and Harley Quinn. I want it not have a heavy focus on damage, but still be useful in combat; so like, using tactics like distraction or maybe using attacks that disable/debuff the enemies we're fighting against so that the barbarian or equivalent can come in and smash them, meanwhile this character is laughing and attacking the next guy.

I know that thrown weapons invariably suck in 3.5, but this really fits best with the concept (really the way the aforementioned job from FFTA works the closest to what I'm thinking of). I'm willing to do something like, say, juggle fireballs instead, however, just that I use them in an unconventional way (conventional being straight up damage).

What do you think? Is it viable? Cool, even?