Pay close attention to the damage numbers and (if you have Sharper Images traited) bleed stacks. When the Zerker spawns, its first hits tend to appear before it does.
Well, no. He actually does nothing, no stacks, just sits there. and chills.
How does not attacking for a second make him broken?
I thought it was self-explanatory for any mesmer out there.
You see, most if not all(excluding special mechanics like annoying light wearer loving golem bosses) enemies tend to switch on whatever is closer, hits hardest and is squishiest on the first aggro and mid-fight.
So for example if you open on your monster with phantasm first, he will go after it and try to kill it.
So, in our situation we have IBerserker, that spawns right next to their face, hits moderately hard, and is extremely squishy. Obviously mob will go after it first.
When this skill work “properly”(because no one really knows if that behavior was intended or not, but I assume it was), phantasm starts it’s spin2win move just right after spawn, breaking distance between it and target and dealing damage.
In my case, phantasmal slug stands there doing nothing while still being squishiest and closest, effectively destroying itself right after spawn with one monster attack.
Thats why I call it broken.
