Pretty sure when OG meant weapons, it is not guns and bows aka bullet bros.
Because it can siphon health and mana from enemies and using a long ranged weapon makes it too OP.
Even if you lost the ability to get health and mana because you are using the weapon at range, it could still be a plus. I would say you probably need to bring the ammo though.
However, even if it is 'only' Melee, it still leaves a fairly large gamut for what it could be. As a lot of weapons used to be tools and tools can be weapons. So Cast Iron Frying pans, Chains/Ropes on Grappling hooks, Bill Hooks, Scythes, Stun Guns. Your imagination can be limitless on the uses for a weapon, outside of combat.