I never see something that increase the physical damage of a weapon in Divine Divinity ! Only increasing your Strength give more damage because your hero becomes stronger.
DD has charms, but only to give your hero more resistances (fire, lightning, poison, spirit), more vitality or mana, more strength, agility, intelligence or constitution.
Divinity II Ego Draconis HAS "enchantments" you can put in weapons (and more) to increase the physical or magical damage !
Maybe you disarrange both games?
