It doesnt bug out, the attacks are 0.25s apart so it queues up all your right click attacks then sends the same ammount out.

It doesnt trigger properly, since If I get core level 3 and I have max level in his "e" than it allows you to walk away yet still attack. But the attack seem weaker than if you didnt move away. So either it doesn't do full damage or it a bug that you can attack from the other side of the map. Also they dont crit either, despite just being another one of his attacks.

His 'E' attacks does less damage in general is because it CANNOT crit nor carry any effects like the default Weaver. Not sure if it does carry pure even, but that and splash (Oddly) might be the only thing that works with it if it does. As the other guy said, it launches as many extra attacks as you can attack, even if the target dies before all extra shots are launched. It's NOT a bug where you can launch those extra attacks from across the map, nor a bug with said extra attacks not critting.

All physical skill, abilitys, passives and summons that do physical attacks should get piercing damage (pure damage) according to your items. (for example luna glaives, medusa, veno wards etc.)
So the second attacks should get it too if all works acordingly!
Afaik, it shouldnt have splash, -armor or any other orb/attack modifier.

Originally posted by Professor Chaos:

All physical skill, abilitys, passives and summons that do physical attacks should get piercing damage (pure damage) according to your items. (for example luna glaives, medusa, veno wards etc.)
So the second attacks should get it too if all works acordingly!
Afaik, it shouldnt have splash, -armor or any other orb/attack modifier.

No clue about the splash. I just had smaller creeps dying to the EXTRA extra attacks made to the ground where the main target I focused on died.

I've played with weaver quite a few times, and everytime I have gotten core level 3+. With very high attack speed, the E does indeed shoot out an insane amount of attacks, even after the boss has died, but it does eventually stop. It's not bugged, it's just that you're attacking so fast that the extra attacks don't all shoot out straight away, and instead queue up. Dunno what you meant that it bugged at the 30th boss, because I went through both normal and NG+ with weaver, without any bugging. Maybe it's just your game. As for the insane geminate attack procs, if it really does bother you that much, then just don't get core.

I realize that it an intended mechaince for it to attack continuously like that, but like the default weaver you can crit on the "e" attacks. It also applies the same effects as the normal attack would. So it is a bug that it doesn't critt on the "e" attacks and it doesnt apply the pure damage from crossbow for instance.