The change I would suggest would be to remove shield proficiency and tie the rest of the bonuses into the attack action. I would leave medium armor for EB builds if they want that over the other patron choices.
-So you can activate the curse only when you use an attack action. Could keep it as a bonus action. (timing wise you could still use it before the attack)
-You could even add another ability saying when you use your hex weapon and perform an attack action you gain +2 AC for 1 round. (makes up for lost shield proficiency for melee builds)
So a melee focused build loses nothing at all and both builds now have a free hand to cast spells (which I think is more streamlined for a caster). Although they would not have their +2 AC at range.
An EB focused build can now hold a sword and leave the off-hand empty. In the early levels they are still given a reason to use their sword over EB when stuck in melee over dealing with disadvantage or moving away.
An EBer just getting Medium armor is still a nice bonus and worthwhile. shield and curse on top is a bit strong.
-So you can activate the curse only when you use an attack action. Could keep it as a bonus action. (timing wise you could still use it before the attack)
-You could even add another ability saying when you use your hex weapon and perform an attack action you gain +2 AC for 1 round. (makes up for lost shield proficiency for melee builds)
So a melee focused build loses nothing at all and both builds now have a free hand to cast spells (which I think is more streamlined for a caster). Although they would not have their +2 AC at range.
An EB focused build can now hold a sword and leave the off-hand empty. In the early levels they are still given a reason to use their sword over EB when stuck in melee over dealing with disadvantage or moving away.
An EBer just getting Medium armor is still a nice bonus and worthwhile. shield and curse on top is a bit strong.