IMO, for solo leveling it’s more important to reduce your phantasm cooldown times than to increase their damage. You’re going to be facing a lot of weak mobs that die quickly, you want to be able to get another one out asap on the next target as they are a huge chunk of your dps, even without the traits increasing their damage.
Everything else in inspiration isn’t very important for leveling (you are plenty survivable with just clones, decoy, and mass invis), so you’re basically spending 25-30 trait points for just 15% phantasm damage.
Instead, I’d suggest going for blade training first (+critical infusion), and 10 in domination for empowered illusions. At 40 respec for 0/15/0/0/15 for illusionist’s celerity, getting 20 dueling and deceptive evasion after that. From there you can either put more points into illusions if you want to shatter every mob or go up domination for empowered illusions again and greatsword training. Use sword/sword (or sw/p) and greatsword, focus on power + precision gear.
Condition mesmers are kinda frustrating in pve because a ton of your damage comes from scepter block and confusion, both being flaky in pve with mob slow swing speed and failure to even attack you.
Everything does work though, I think it’s better to keep switching weapons around so you don’t get bored than simply level as fast as possible.
