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 the Sea", reflects the fact that it is awarded to Sora after sealing Atlantica’s Keyhole.