Quake Breakers

The Quake Breakers were twin chainsaw-like weapons that were Onua Nuva's Toa Tools. He used them to channel his Earth Elemental Energy through. They could also dig through earth and rock easily, and could even attach to his feet to serve as all-terrain treads. they attached to his feet much like Kopaka Nuva's staff.

The Quake Breakers were later replaced with a Multi-Resistance Shield when Onua received his Adaptive Armor from Artakha.

Trivia

 * The Quake Breakers, in spite of being Onua Nuva's primary weapons, only made two brief appearances in BIONICLE: Mask of Light.