EDITED
I play a number of classes, Thief and Mesmer are by far my favorite.
The trick to beating a Mesmer, is too play as one. The big thing about finding out which is the real deal, is to watch what each ‘Illusion’ is doing. The illusion summoned you can tell apart because the original Mesmer will dissapear JUST before the fake appears, if I were you, I would just keep stomping the one which is further away because it teleport the real Mesmer away. The Sorcerer illusion will stand there using an auto attack making no effort too dodge. The bezerker will stand still and occasionally use it’s spin attack, etc. You will know the real deal because they will dodge, use multiple spells, switch weapons. It really isn’t as hard as some people think
Hope this helped
(edited by Vertix.5693)