Chaos Mesmer Tips?
Don’t play that in PvE, they nerfed it to pieces. At lvl80 you’ll have everything unlocked anyway, and there are several leveling guides in this forum.
Staff deals pitiful direct damage unless the target is loaded up on all different conditions, so use condi gear and try to always maintain 3 staff clones for condi dps. Dueling is good for additional bleeds and rapid clone production, Illusions provides a proper cooldown trait for Phase Retreat and various condi/shatter options. Domination gives raw damage, Greatsword cooldown reduction and nothing else. Inspiration has tons of healing and support options.