Jessie's Shellder was a Pokémon owned by Jessie.
James discovered a Shellder and battled it, but Jessie captured the Shellder. When Giovanni gave Team Rocket orders to get from Westwood V a rare Pokémon, Team Rocket came to his lab and attempted to evolve his Slowpoke. Though Psyduck stood in the way, Team Rocket managed to evolve Slowpoke by throwing Shellder on its tail, but they did not capture Slowbro, as it blasted them off using Mega Punch.
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|Ice Beam||The Evolution Solution|
|+ indicates this Pokémon used this move recently.*|
- indicates this Pokémon normally can't use this move.