This Pokémon spent between 20 and 79 rounds as Horsea and an unknown number of rounds as Seadra.
Silver's Kingdra (Japanese: シルバーのキングドラSilver's Kingdra) is a Pokémon that Silver owns in Pokémon Adventures. Kingdra was originally owned by Silver before being given to Green (nicknamed 「タッちゃん」 Tat-chan in the Japanese version). She was later given back to Silver. As of All About Arceus III, she is at level 80 and her Characteristic is "takes plenty of siestas."
Prior to the start of the series, Kingdra was a Horsea owned by Silver when he lived with the Masked Man. After escaping from the Masked Man, Silver gave Green Horsea in exchange for her Snubbull before the two parted ways.
Horsea and Green
Horsea first appeared in Zap! Zap! Zapdos!, where she battled against Sabrina and her Kadabra. Horsea quickly releases a Smokescreen to blind her opponents while Green wears a modified Silph Scope, allowing her to see through the smoke. Despite this, Sabrina is still able to see perfectly fine thanks to her psychic abilities and has Kadabra launch an attack at the Dragon Pokémon. The Psi Pokémon then clears the smoke with Psychic and uses Disable to prevent Green and Horsea from moving. With the help of Jiggly and Clefy, Green manages to escape from the gym leader.
In Playing Horsea, Green had Horsea cover Jiggly in a Smokescreen while she, Yellow, and Bill ride the Balloon Pokémon over Cerise Island. While traveling through the air Bill drops their map, which was found and eaten by one of Lorelei's Slowbros. Green then has Horsea latch herself onto a spike on Slowbro's tail while leaving a trail of ink for her Trainer to follow. Horsea was later found by Lorelei, as she was noticed by the Shellder on Slowbro's tail, and is used as a hostage. Lorelei tells Green she can have the Dragon Pokémon back if she and Sabrina come closer. Green follows the order and is knocked unconscious by Lorelei's Jynx's Pound attack.
Sometime after the Yellow chapter, Horsea was given back to Silver and evolved into a Seadra. In Ampharos Amore, Silver traded Seadra to Gold for his Polibo while holding a Dragon Scale, causing Seadra to evolve into Kingdra and Polibo to evolve into Politoed. Kingdra was shortly traded back to Silver for Polibo. Kingdra was later used in Silver's battle against Gold. Kingdra was called out to fight against Gold's Sudobo, where she quickly attacked the Imitation Pokémon with Water Gun. Kingdra is then recalled for Silver's Tyranitar, as Silver wanted to end the match quickly.
Kingdra and Silver
In Delibird Delivery - 1, Kingdra used Twister to push Gold away from the ice spikes the Masked Man had set up.
In Dealing With A Koffing Fit, Silver arrives at Lance's secret hideout and is soon attacked by a group of Koffing. Kingdra fought alongside the rest of Silver's team to drive off the large horde of the Poison Gas Pokémon.
Personality and characteristics
Kingdra is a resourceful Pokémon, being used for a variety of tasks by Green and Silver, such as hiding Green in a Smokescreen, leaving a trail with ink, and using Twister to push others to saftey. As a Kingdra, the Dragon Pokémon is shown to be very serious, often doing her task without objection and with a stern face. With Silver, Kingdra was used in battle mainly for her speed and Water-type attacks.