I like EK as a "War" type caster and Evocation fits well. It's pretty awesome to wipe out minions with a Fireball, and then take down their boss with a Greatsword. The game should not steer you away from Evocation spells after making them a core part of the class.
I think requiring and rewarding a higher Intelligence for an Arcane spellcaster hybrid class should be a thing.
I think Intelligence should affect the potency of all spells, not just offensive spells.
I think it's clear that EK is meant to be a hybrid warrior-spellcaster who uses both offensive and defensive combat spells, but lacks the utility/CC repertoire or versatility of a dedicated spellcaster. They can still pick any spell at certain levels and an 8th level EK can do stuff like Hold Person > GWM crits combo. So Intelligence can and should be a big deal with this subclass. Which leads us back to the Headband/Int dump being pretty stupid in a video game.
