I read somewhere that to make it work, you have to activate P.I. Then begin casting one of the "illusion other" type spells, then click aspect instant cast, then cancel the illusion other cast before it finishes. Idk if that's just an old work around, or if that's the current process. But with storm break being the LoN loot cards in the marketplace, I'm going to be trying to get aspect on my ench
Don't have to use any crazy workarounds, can just click your illusion clicky with your group member targeted and poof! Can't remember if it was last patch or this coming patch that changed PI to be an "always on/always off" thing, but you will no longer need to "activate" PI. It's just a toggle now. And no, will not work with MGB.