Since no one else has taken a stab at this, I’ll offer some suggestions. I can see what you’re trying to do with this build, but I think there’s some potential problems that you’ll need to address.
First, it’s probably more accurate to call this a “dazer” build than a “stunner” build. Both provide interrupts, but the difference is that enemies can move while dazed but not while stunned. Controlling movement is pretty important in WvW. If you want true AoE “stuns”, you might have to look towards some other professions (i.e. Ele, Eng).
If you’re set on going with Imbued Diversion, you need to (1) create lots of clones to shatter and (2) ensure that those clones reach their targets. I think you’re kind of lacking in both of these areas. For clone generation, it’s hard to pass up Deceptive Evasion in Dueling. IMO you’ll benefit more both offensively and defensively from the frequent shatters than the reduced mantra cooldown (since you’re not going full mantra anyway). The harder part is making sure your clones reach their target. This is going to be tough because of the overwhelming AoE in WvW and because your build lacks a reliable snare.
To address these issues, I’d suggest going Sword+Focus/Greatsword. The focus pull and GS push both count as “interrupts”, which would go nicely with the interruption traits. The focus will also give you a longer range snare and better mobility. These weapons also spawn their phantasms at the target’s location, which might make it easier to get your Diversion off.
The other things to consider is that it might be worth giving up the vulnerability from Rending Shatter for Shattered Concentration. If your build revolves around interruption, then you’ll need a way to remove stability from enemies as necessary.
I’d also recommend taking some preventative measures against conditions, since you don’t have any condition removal. Lemongrass Poultry Soup might be a good food choice in this regard.
Hope this helps. Good luck!
