Illusionary Weaponry/ Vamperic?

Does the vamp hilt add damage to the illusionary weaponry attack?

To my knowledge, while IW is active, you don't actually "hit" anything. So the vampiric hilt won't add any damage. Same goes for all other types of damage modifiers. You simply do whatever damage your IW skill description says you do.

Does anyone know if Barbs (NOT Soul Barbs) works with Illusionary Weaponry? Or that damage is not physical?

Illusionary Weaponry does Chaos Damage, so no barbs won't work. IW also doesn't interrupt skills that are "Easily interrupted", so don't bother attacking a trapper.

Humm, you know that i'm not convinced. So light/dark and chaos damage are elemental for GW? The description of Barbs says "physical attack" not physical damage. hmm i think a test is needed. Pity i need 12k xp to get another SP

No. Physical is one type of damage, elemental is another type, and holy, shadow, light, dark, and chaos aren't either of those types.

IW doesn't do chaos damage, actually. Only mesmer wands/staves do chaos damage. IW does, uh, typeless damage. Which ignores armor, unlike chaos damage.

If you search around, you will find that no one know what kind of dmg IW deal. It just does dmg.

It used to be that the description for IW said it dealt Chaos damage. Now it just says it deals damage. In either case, it doesn't matter since any spell that isn't an elemental-based attack has an inherent "ignores armor" effect, like holy/smiting, dark/necro, and chaos/mesmer, the three non-elemental types. (Zealot's Fire is fire damage, just in case anyone was wondering why it's reduced by armor.) But a weapon doing damage with those types still is affected by armor, such as the wands/staves and Judge's Insight-enchanted people.

IW is basically spell damage and not attack damage. So pretty much anything that triggers when you attack or "hit" someone, doesn't trigger. Well, the game still checks for attacks, such as in the case of Gladiator's Defense, but the IW spell still hits anyway and the damage you do is 0 if you hit.