Water Release: A Thousand Feeding Sharks

A much more powerful version of the Water Release: Five Feeding Sharks, where the user creates one thousand sharks out of water that replicates a giant wave to swarm down and attack the opponent.

Trivia

 * In the manga, these sharks are formed from the water. In the anime, they appear to be summoned sharks.
 * In the Shōnen Jump publication of chapter 506, the name of this technique was pronounced Senjikizame. It was corrected to Senshokukō in the tankōbon release.