Im guessing this item is for those players who collect illusion items. I can't see any practical use for this, especially with all the stacking issues. All it really does is say you got 90 gold tokens.
So. Probably 35 boomerang missions later I saved up my 90 Gold Tokens. Bought my Visage. Clicked it. Instant Kobold. Woot! Only 17AC but every little bit counts.
Then we decided to do a kill mission. Cool. Pop my short term AC buff. Nothing happened. Tried again. Nothing happened. A bit of testing shows it doesn't stack with the Illusion. So it's a net loss of 27AC or something.
Boat load of work for a negative result. Have to wonder what you are thinking on this one SoE.
At lvl 85, it adds 17 ac. Was told that it was 40 ac, which was not that great either, but since you can't trade the gold...., and my daughter doesn't like the look either, so she will probably never even click it.