Dracovish first appeared when Cara Liss and Bray Zenn restored it and an Arctozolt from Fossils they had discovered in the Wild Area. Ash attempted to greet it, but it responded by trying to bite him and then proceeded to chase him and Pikachu. As it chased Ash, he commanded Pikachu to use Electroweb to stop it, but Dracovish tore through it and accidentally attacked Arctozolt, which got angered and created a field of ice using Icy Wind, that both Ash and Dracovish slipped on, resulting in Ash winding up on top of the Fossil Pokémon as it ran away. It ran a long way to a pond, where Ash realized it had just wanted a swim. After they had returned to their starting point, Cara Liss and Bray Zenn let Ash and Goh keep the Fossil Pokémon, since they had already gotten the data they wanted about them. As such, Ash caught Dracovish, while Goh caught Arctozolt.
In Taking Two For The Team!, Ash used Dracovish as his second Pokémon in his World Coronation Series match against Drasna at the Kalos League stadium. It first went up against Noivern, who managed to cut Dracovish's stamina in half with Super Fang, but was so badly hit by Dracovish's Ice Fang in the process that Drasna subsequently recalled it and sent out her Altaria, which she soon proceeded to Mega Evolve. Although Ash got the idea to drench Altaria's feathers with Water Gun, his strategy to exploit this failed due to him not knowing that Mega Altaria is part Fairy type, rendering Dracovish's Dragon Rush useless against it. As such, Ash chose to then recall Dracovish, but it almost immediately came back out to cheer for Sirfetch'd. After Sirfetch'd had taken Altaria down with it, Dracovish returned to the battle, with Sirfetch'd cheering for it. With this mental support, Dracovish was able to push through Noivern's attacks and defeat it, making Ash the winner of the match and increasing his ranking.
In Friends, Rivals, Lend Me Your Spirit!, Ash visited Pallet Town and introduced his Pokémon to his new friends that he caught during his journey around the world, including Dracovish. During the visit, Dracovish relaxed with Glalie. Dracovish then watched Ash's battle against Paul, where he emerged victorious. Before Ash left his hometown, it posed with the rest of Ash's Pokémon in a group photo with him.
In Battling as Hard as Stone!, Dracovish was the first Pokémon Ash used during his Masters Eight Tournament match against Steven. It first battled against Metagross, managing to deal some damage to it with a powerful Fishious Rend but not without taking damage from Psychic. Dracovish was then pitted against Steven's Aggron, but was defeated after a collision between Heavy Slam and Dragon Rush.
In Valor: A Strategic Part of Battling!, Dracovish was Ash's fourth Pokémon used to battle Cynthia in the Masters Eight Tournament, where it was first pitted against her Garchomp. Dracovish attempted to land an Ice Fang, however, Garchomp dodged and dealt a powerful Dragon Claw and proceeding to use Stealth Rock. Garchomp was then swapped for Roserade who managed to poison Dracovish with Poison Jab. However, Dracovish pushed through the poison damage and pushed through a Leaf Storm before defeating Roserade with a devastating Dragon Rush. Though Ash tried to recall Dracovish, it refused to be switched out and went on to fight Cynthia's Milotic, managing to deal heavy damage with Fishious Rend to it before being taken out by Iron Head.
In Toying With Your Motions!, Dracovish was the fifth Pokémon Ash used against Leon in the Masters Eight Tournament finals. While fighting against Leon's Dragapult and taking a blow from Dragon Darts, it unexpectedly awakened an innate ability that allowed it to bind Dragapult and deal heavy hits on it with Ice Fang, before being hit by a Dragon Tail and forced to return to its Poké Ball. In the next episode, Ash sent Dracovish back out to face Leon's Rillaboom after it had defeated Dragonite and Sirfetch'd. Carrying forward the spirit of its defeated friend, Dracovish was able to defeat Rillaboom after a clash between High Horsepower and Dragon Rush. It next faced Cinderace, whose LiberoAbility proved troublesome and soon led to Dracovish's defeat. In Partners in Time!, Dracovish appeared as a vision to Pikachu during his battle against Leon's Charizard. After Ash had won the battle, Dracovish joined him and the rest of his team for the awards ceremony.
Dracovish has a habit of nibbling on people's heads, especially Ash. Dracovish even likes playing in places where there is a lot of water to swim in and enjoys spending time with other Water Pokémon, as shown by it hanging out with Goh's Water Pokémon at the Cerise Laboratory. While Dracovish is a somewhat slow swimmer, its powerful legs and gills allow it to run underwater at high speeds if it sinks to the bottom. In On Land, In the Sea, and to the Future!, its unusual body composition helped it and Ash come in first in the Kids Marine Athletic Race. In Toying With Your Motions!, Dracovish awakened a long-dormant power within itself after being struck by a Dragon Darts attack from Leon's Dragapult. This ability allowed it to extend glowing, red energy through the spikes along its body, which can be used as a makeshift second set of teeth.
Dracovish's awakened power
Dracovish strongly dislikes disappointing Ash, becoming extremely determined to prove itself, as shown in On Land, In the Sea, and to the Future! when it used Fishious Rend after Ash assured it that it was alright if it did not know the move, and in Valor: A Strategic Part of Battling! where it got poisoned by Roserade's Poison Jab and became very agitated as a result.
Dracovish can be easily distracted; not realizing it had been called out to battle in Thrash of the Titans! and instead started nibbling on Ash. However, it is extremely eager regarding Pokémon battles, showing a similar tendency to get fired up like Ash. It rushes to take on opponents during battles such as Ash and Pikachu when it was first revived and defeated Iris's Dragonite in its first-ever official battle.
Dracovish developed a close friendship with Sirfetch'd after training with it at the Lumiose Gym, especially when Sirfetch'd gave it permission to bite on its leek as thanks for its help in mastering Meteor Assault. Also, during the battle against Drasna in Taking Two For The Team!, Dracovish stayed out of its Poké Ball to cheer Sirfetch'd on. Dracovish seems to be drawn towards other swaying movements, such as the plumage on Altaria's head, and easily gets the urge to bite down on whatever's making the motion.