Well… Not really.
Most of them are awful, yes, but there are some weapons that the Atlanteans made actually usable and realistic, that being the Atlantean mace
So, yeah. Most Atlantean weapons are straight up dumb and impractical, for example Atlantean Rapier. Like fr this is just a rotten dead fish how would it even thrust?? Break in one hit?
Are there even any good Atlantean weapons excluding the mace
its a swordfish.. thats probably mutated as well which prob made it more durable, you could have said something like the atlantean cutlass which is like a fucking crab/lobster claw yet somehow counts as a sword
A normal longsword would already do a good job at cutting, because well, it does not need that much weight - it’s elegant, all you need is skill (well not only that).
A greatsword is much heavier - just adding skill to it won’t do better than a longsword. And if it’s goal to bash - well, maces exist.