"Kingler has an enormous, oversized claw. It waves this huge claw in the air to communicate with others. However, because the claw is so heavy, the Pokémon quickly tires."
Kingler is a beast of a crab, and it takes on a more Pokemon-esque shape in regards to its MASSIVE claw. Ash's Krabby actually evolved after its first battle with Ash. Now a Kingler, it defeated two other Pokemon on its own with little effort. Even (somehow...) knowing Hyper Beam right after evolution. Don't mess with the King Crab people.
Kingler's Basic Attacks are Metal Claw and Mud Shot. While its Special Attacks are Water Pulse, Vice Grip and X-Scissor.