Crabclaw

The Crabclaw (トレジャーオブシー) is a Keychain for Sora's Keyblade which appears in Kingdom Hearts and Kingdom Hearts: Chain of Memories.

In Kingdom Hearts, Ariel gives Sora the Crabclaw once he locks Atlantica's Keyhole. In Kingdom Hearts: Chain of Memories, the Crabclaw is the signature Attack Card for Atlantica.

Design
The Crabclaw's handle is green and resembles seaweed, while its guard is light blue with a purple mermaid adorning both sides. The shaft of the blade is light blue, thin, and resembles a jet of water. The teeth are comprised of a simple, orange crab with its claws pointing outward. The Keychain token is a light blue seashell.

The Crabclaw's name is a clear reference to the crab that make up the weapon's teeth. The Japanese name, "Treasure of Sea", reflects the fact that it is awarded to Sora after sealing Atlantica’s Keyhole.