[Autumn]

I'd be wary of buffing Ephemeral Insight anymore than bypassing all forms of elemental mitigation other than things like Sayakana. The whole reason Charge Mind got adjusted is because it was so powerful of a pre-engage buff.

It'd make it so that when you engaged on someone who had CM'd prior you'd usually just die immediately since they'd preloaded an entire extra round of damage.

On the surface, yeah, only making your damage Akashic doesn't sound great. Its purpose is bypassing elemental resistance/nullification you'd otherwise be running into. Of course you aren't going to use this if your target does not heavily resist or nullify your damage type. Otherwise it's extremely potent if your build is heavily reliant on boosting one damage type or you really don't have anything better to do for prepping.

Making it any better universally risks it becoming what old CM was. Watching Evoker instantly kill people because the map was so big it allowed them to prep long enough to kill you immediately on engage.

Trex vs the average tank my akashic ryemei crit that could be doing 600ish akashic damage with 200hundofucking lightning attack is being reduced to 100-200 ish akashic damage (all that for 12m) because funny haha Magic DR and Marmor, dear god if they guard I'm doing less than 100, ephemereal insight doesn't even guard break.

This is just the damage stacker experience, throwing coinflips to who passes the stat check to your build or not, equally to your opponent it can be frustrating to just be 2 or 3-shot. It is not like Evoker has never faced issues with heavy amounts of DR before and to me it seems like that has always been the intended experience of playing against it. The downside is that magic DR is less common and magic armor is scarce, with elemental resistance serving as the key defensive measure in some of it's matchups.

Trex is right about being wary about buffing Ephemeral Insight too much, I'm not sure if there is any way you can make double CM ultimately healthy since it'd have to be balanced around having a 12m cost, which isn't really possible to make worth it in any light given that CM is already still one of the best neutral buttons in the game.

I'd kind of rather Ephemeral Insight turn 3rd level excel spells into Akashic Damage to be quite honest, being completely passive in it's approach, this would take down one of the barriers that evokers can face with elemental resistances, while not being too committal due to just being completely passive now, this would also make it so that your fully charged spell is just consistently powerful, a tool that Evoker needs far more than just more damage.