Seel

The protruding horn on Seel's head is very hard. It is used for bashing through thick ice. In "The Water Flowers of Cerulean City," Ash, Brock and a reluctant Misty arrive at the wondrous Cerulean City. Ash challenges Lily, Violet and Daisy — the beautiful leaders of the Cerulean City Gym — to a Pokemon match, but they flatly refuse. When the Gym's mascot, Seel, gives Ash the Cascade Badge without a single battle, the fourth sister, Misty, steps forward to accept the challenge!

First appearance: Episode 7—"The Water Flowers of Cerulean City"