Core Engines are not weapons in and of themselves, rather a source of energy for many forms of machinery, including certain weapons such as guns. Maya, Grubb, Runner, Araym, and Lobo use Core Engines to power their weapon of choice.
These long-bladed weapons for cutting and thrusting are used by Selina and Corgan. Some swords can only be wielded by one or another.
Normally a tool used applying torque to fasten or loosen parts such as nuts and bolts. Exclusively used by Led, these unsually large wrenches can be used a bludgeoning weapon.
Only Badu uses knives in combat.