NA:Clawitzer's right claw is so massive, we wouldn't be surprised if you thought it was thisPokémon's actual body. The name Howitzer Pokémon is no accident--it can pierce the hull of a ship with the watery cannonballs it fires. Unless you've got a water gun that can match that, we'd suggest skipping the water fight with this one.
PAL:Clawitzer's right claw is so enormous, you might mistake that for its body. As implied by the fact that it's the Howitzer Pokémon, that giant claw launches cannonballs (albeit water ones) with terrifying force. If you come at it with a water pistol, you'll find yourself more than a little outmatched. Clawitzer's blasts can pierce tanker hulls!
Clawitzer in The Kalos Pokémon League's Water Chamber