You're right, absolutes are problematic. I changed Impenetrable Illusions to mimic Insidious Casting so it's more fair. I also removed "Supreme Flank" and replaced it with "Supreme Two-Weapon Fighting."
I copied the formatting of DragoonWraith's excellent Invoker
class so there's an easily referenced chart. I also took one of his invocations, Falling Dream
, but swapped it from Lesser to Greater for my purposes (I felt it would be too strong as Lesser).
The class isn't done yet, but it's almost there. Probably needs a few more invocations. I just hope it meets my goals of:
2) Not overly complicated
3) Low-to-mid tier 3