Ceruledge debuted in The Pendant That Starts It All: Part One, having been sent out to battle against Friede's Charizard at the rooftops of Indigo Academy. Both sides were equally matched, but the battle ended abruptly when they all noticed Liko and her Sprigatito jumped from a roof to another. In that moment, Amethio saw an opportunity to strike her down and commanded Ceruledge to use a Psycho Cut on her, but the attack failed as a mysterious green, hexagon-patterned protective sphere of energy appeared around her. Then, Friede and Charizard rescued them from their fall and fled from the area.
In the next episode, Ceruledge battled against Friede again, this time facing off against Captain Pikachu. The battle was eventually stopped when Liko interfered, about to give herself up. Soon, encouraged by her Pokémon, she had Sprigatito attack Ceruledge with a powerful Leafage, which was powerful enough to break the forcefield around Brave Olivine's battlefield, but the Grass Cat Pokémon got overblown in the process, allowing Amethio and his crew to kidnap it before fleeing.
Weak Armor activated
In For Sure! 'Cause Sprigatito's with Me!, Ceruledge again battled against Captain Pikachu, this time being able to push both Pikachu and Friede into a corner, but just as they were about to win the battle, it was called off once Amethio noticed Liko running away with her recently-recovered Sprigatito and Friede and Captain Pikachu successfully escaping by flying on Friede's Charizard.
In HZ022, Ceruledge battled against Friede's Charizard at the Galar Mine. This time, it gained a major lead due to the activation of its Weak Armor Ability once Charizard made direct contact with Dragon Claw, drastically increasing its Speed. However, the battle was interrupted by the sudden appearance of Lucius's Galarian Moltres.
In HZ024, Ceruledge attacked and scared off a Stonjourner, allowing Amethio and his group access to the old castle. In the following episode, Ceruledge battled against Friede's Charizard yet again and tricked it into making direct contact to activate its Ability, giving Ceruledge the upper hand. However, once Charizard Terastallized into a Dark type, Ceruledge was defeated and knocked out by a single Tera Blast.
Ceruledge and Amethio
In HZ033, Amethio used Ceruledge in a battle against the Black Rayquaza alongside Corviknight but, despite doing its best, it was easily defeated. In the next episode, Amethio used Ceruledge to battle Hamber's Dusknoir in a training battle. However, Ceruledge was defeated after Hamber Terastallized his Pokémon.
Personality and characteristics
Ceruledge is Amethio's main battler Pokémon, being used in most of its Trainer battles. Ceruledge has shown to have many of its Trainer's traits, being quite cold and not hesitating to hit or wound other people with its attacks. Ceruledge presents itself as a completely obedient Pokémon, following every single one of Amethio's orders without question or hesitation. Its loyalty is further proven when it is shown to be willing to take on attacks and protect its Trainer from harm.
In terms of battling, Ceruledge is quite skilled and powerful, being able to battle and overwhelm Liko's Sprigatito and Roy's Fuecoco single-handedly without breaking a sweat. It was also shown to be capable of battling toe-to-toe against Friede's Charizard and Captain Pikachu, further showing its battling prowess and experience. Like most of its kind, Ceruledge is ruthless in battle and mainly relies on its speed and agility to overwhelm its opponents, and it will not hesitate to use sneak attacks and ambushes to its advantage.