Whats a Charge-Up move?
A Charge-Up move is any skill from the Martial Arts tree that’s labeled Charge-Up. Some Charge-Up attacks can be used by any melee weapon, though the Elemental branch of the Martial Arts tree (Fist of Fire, Claws of Thunder, and Blades of Ice) can only be used by claw-class weapons. The maximum number of charges you can accumulate per skill is 3, though you can have multiple Charge-Up skill charges active at once.