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 powers. They could also dig through earth and rock easily, and could even attach to his feet to serve as all-terrain treads. The Quake Breakers were later replaced with a Multi-Resistance Shield when Onua received his Adaptive Armor from Artakha.

Trivia

 * In the Mask of Light movie. the Quake Breakers were only seen in a few clips.