Mesmer was the last class released for Guild Wars 2 and it is one of the more unique options on Tyria. Unlike most of the other classes mesmer has less focus on damage. Instead nearly every spell that mesmer has available offers some kind of boon, detriment, or combo effect. With the ability to buff and debuff so effectively as well as providing support mesmer will be a sought after class for pvp. The ability to stealth your team or set up a portal into a keep seem extremely powerful.
Unique to mesmer are the dumb fire illusion pets. These pets only attack your current target and the weapon you are using will determine what skills they use. You can use your illusions to complete combos increasing damage or adding more effects to the attack. With the ability to swap weapons it looks like the mesmer will be one of the more complicated classes to master at near max effectiveness.
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