Dual-wielding

Adventurer’s slang for the practice of fighting with a weapon in each hand. Also known as two-weapons fighting and tempest technique. Practiced by many warriors throughout the world, but among PCs it is most often found in rangers, some fighters, some barbarians and a few rogues.

Wizards have adapted a similar technique called Dual Implement Spellcasting, which enables them to channel some of the potency in a magically echanted implement through their main implement to deal more damage.