Originally Posted by
Great Dragon
Sure, but left as the Original Hexblade, means that none of the other Patrons are chosen except for flavor.
(With your "Curse spell" making it where the Player can get both their chosen Patron abilities plus Curse powers)
By that, there should also be non-multiclassing "Gish" full caster Sorcerer and Wizard options.
I suppose that Wizard's War Magic might qualify.... I haven't seen it in play, yet.
But, most players/DM don't have a problem with:
Eldritch Knight giving the Fighter/Wizard Gish option.
And Arcane Trickser giving Rogue/Wizard option.