MCH Overheat should activate automatically

[Shurrikhan]

...

This seems a bit button-bloated.

It's very rare that AoE vs. ST options constitute a real decision. Such requires both a target count and relative power between the options such that the focus target damage of the pure ST option might outweigh the greater total damage of the AoE option. Given present AoE tuning across the game and how damn near unheard of focus targeting is to this game... it doesn't worth having 3 extra buttons just to attempt a (shabby) illusion of complexity. I'd recommend just turning Flash Point and Vent into AoEs with falloff, having Heat Blast (if not added directly to one's hotbars already) replace Flash Point and Auto-crossbow (if not added directly to one's hotbars already) replace Spread Shot, bringing the button consumption down from 6 to 2 (FP->HB and Vent) or 3 (FP->HB, Vent, and AC not forced over Spread/Scatter) at the player's discretion.

I also don't see why you'd want to, like present models, go out of your way to make Skill Speed even more terrible via the "Recast timer cannot be affected by status effects or gear attributes" clause.

Other than that, looks good.