The amount of stab is ripped from any class with the sheer amount of spammable daze mesmer has, 2x chaos field, daze mantra, pistol 5, diversion. And of course arcane thievery which any semi competent mesmer will use after stability is applied. Scourge stabi is pointless as its 1 stack, firebrand needs to access tomes so it can't pressure the mesmer, so again doesn't really help. Engi needs to hit a target so can easily be dodged. Warrior gets it from full counter which lasts 2 seconds. Ranger gets a lot of stabi surr and I don't play weaver so Idk.