But from the description, sounds a lot like Bladelock who chose to summon a glaive as their weapon. And if you have a Hexblade patron, you can add your Charisma instead of Strength to your attack/damage rolls!
On 3.5e, Eldritch Blast was not a cantrip, was a spell like ability or invocation, And there was far more invocations which changes how Eldritch Blast "works", you can apply the cone form, allowing a reflex save for half damage, can apply a chain form making it arc like an force chain lightning and warlocks had no spell slots BUT had a lot of powerful invocations. Allowing him to fly, teleport, cast chilling tentacles which had the same BAB of a fighter grapple enemies and required no concentration, could cast animate dead at will, transform permanently enemies into chickens/toads and so on.
Eldritch Glaive was a modification to eldritch blast which is only at melee range, but deals multiple attacks per round. Pretty deadly but high risky too since warlocks aren't that resistant on 3.5e.
5e melee warlock kinda summon a weapon and honestly, can a pact of blade warlock summon larger weapons like for eg, a ballista? Or a cannon?
Unfortunately many DMs banned 3.5e warlock because it was too powerful. Many games which adapted 3.5e nerfed it to the point that doesn't worth picking like nwn2, but if you wanna experience 3.5e warlock in a video game, nwn2 WITH warlock reworked mod or nwn1 with PRC(wlk doesn't exist on vanilla nwn1) are the most faithful ways to play the class.
