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Protosteel Arm Blade
Bionicles 017
Status In use
User(s) Tazahk, Dracon (formerly), Conqueror, Raduke
Functionality Channeling user's Elemental powers, melee combat

The Protosteel Arm Blades are weapons of any design fashioned from Protosteel. These tools are usually attached to the arm. They are effective melee weapons, and can focus a user's elemental powers and abilities.

They come in many different designs, though most serve the same basic purpose.