Weapons in Divinity: Original Sin II are used to improve damage dealt to enemies. These could be Swords, Bowes, Staffs, Axes, Maces, Shovels, Rods, Sticks and almost anything you can wield. Weapons can have charms and enchantments added to them to complement your skills used in combat. You can get weapons through random loot, through Boss-drops, trading with NPCs and even crafting!
Swords, hammers, wands, and daggers, one handed weapons offer a wide range of options, even allowing dual wielding options for when you're feeling especially dangerous.
Swords, axes, and staffs which offer much more power than their one handed counterparts. Though at the loss of the extremely beneficial armor provided by shields.
For those who like to keep their distance.
For all your ranger needs.