Phantasmal survival
Nice concept. I’d take battle sigils on both swaps instead of what you have, and switch 5 points from Illusions into Dueling for Sharper Images. GS clones, iZerker and iDuelist all proc a lot of bleeds, even without condi damage on your gear that adds up to a good amount of pressure. Might stacks from battle sigils and the occasional mirror blade will boost that as well as your regular damage.
I’d also consider Traveler runes instead of Scholar – you lose damage but the run speed is amazing in WvW. Losing Compounding Celerity also doesn’t hurt at all that way.
I think I have fought someone who uses a build like this one. I won because of PU. the extra 1 sec stealth gave me the edge in targeting. I think it a good build but you’ll have a real tough time beating another mesmer who has PU.