Another idea to toss in the thread.

Invert the single-target bar spells. Instead of Barfire the defensive magic, make a Suppress Fire enfeeble. Sort of a super-Addle that only affects one element... and drops M.acc and MAB, but not cast time/recast time.. ok, only vaguely like Addle. Anyway, it would also affect any TP moves associated with that element (eg: Firespit, Groundburst, Gates of Hades, etc). Can only have one version in place at a time, just like you can only have one barspell element at a time.