First Appearance: "Children of Proteus 001"
Protean crabs have their own unique language and speak primarily through clicking their claws together. While most are reclusive in nature and favor the deep sea, KrAab exclusively lives aboard Narezza Orro's Airship. While his above average strength and large size make him intimidating, he is actually very gentle. A skilled mechanic, KrAab repairs and keeps the Airship in perfect shape.