In BG3, EKs typically want to be throwing weapons builds with Tavern Brawler, since Bound Weapon automatically returns to your hand when thrown.
Really you should focus on buffs and defense spells, not on attack spells. At most maybe get Magic Missle, which doesnt use DC and always hits.
"Play it THIS way!!!"
I really don't understand this mindset. Why are you being so suddenly defensive when people point out what a class is generally good at (to the extent it is good at all, mind), especially in a thread where someone is explicitly saying that they feel they're not getting what they expected out of the class? Building a good EK in BG3 pretty much does boil down to a Tavern Brawler build, because the class isn't very good at anything else. Even with Int to hit and dmg, it still wouldn't really be good at anything else, largely because tank classes aren't great in 5e as a system.
It sounded like OP expected a Bladelock when they picked EK. Pointing out a clear disconnect between what a class does and what the player wants is usually pretty helpful.
@VisibleTarget
If you're looking for a melee/magic hybrid with a focus on spellcasting, you probably want a Pact of the Blade Warlock. You can use your Charisma to hit and dmg with your bound weapon, and you get a much stronger spellcasting progression with spellslots that (mostly) recharge on a short rest.