Mesmer:
http://www.gw2tools.com/skills#m;pfk...Vaa;Zaba;YXdVZ
Focuses largely on mantras and interrupts. With just Mantra of distraction is is possible to daze someone for 6 secs. Add in mind stab from the greatsword and it's another 3 secs. It is important to note that in gw2 an "interrupt" can be another that interrupt a skill. Daze, stun, knock-up -down -back, all these things can be "interrupts". Interrupts also put the specific ability that was interrupted on a 5 sec cd, and reset any chain skills to the first skill of the chain.
Now it might be hard to actually interrupt a skill as I haven't seen an enemy cast bar display, however, with the first skill often being set to auto-cast, I don't think it's going to be much of a problem. Also people tend to mash a button during a silence/daze, so if I follow up with a second daze shortly after the previous one is done, I think I'll have some success. Really I think this build will simply piss people off, which is truly in the mesmer spirit!