[Poruku]

I don't think that would make sense, it would be an auto-pick and as such every single evoker would do akashic damage with their charge mind, making them less unique.

Instead maybe it could be a thing you do that isn't recasting charge mind. For instance, it could cost 0 momentum but like 50fp to activate for 1 spell. Or it could be a passive toggle that swaps all spell damage to akashic but makes them cost 200% more fp. Or it could be a specific akashic offensive spell that is only usable with charge mind and consumes all charges.

All in all the act of swapping damage to akashic is not a strong enough effect for 6m, even back in the old days. Homestly this type of effect should be compared to winter's bite, indignant idol, devil tome, etc. It should either be a passive or an occasional but easily activated effect. It being tied to charge mind is of course thematic, but the concept of recasting charge mind should be removed because indeed it's unbalancable.