"Ahahah! Do you hear it? This crowd! They're all itching to see our match! Ahahah! I bet you're twitching all over from the tension of getting to battle me! But don't worry about a thing! I'm the no. 1 star of the Battle Dome! I, Tucker the Dome Ace, will bathe you in a brilliant glow! Your strategy! Let's see it! The final match! <player> versus the Dome Ace, Tucker! Let the battle begin!"
"Grr... What the..."
If the player is defeated
"Ahahaha! Aren't you embarrassed? Everyone's watching!"
After being defeated
"Rules are rules! Let me see your Frontier Pass."
"... ... ... ... ... ... I sorely underestimate you. I won't make the same mistake next time..."
"Ah... The pummeling roar of the crowd... Their furnace-like heat of excitement... This is a wonderful place... To the crowd, I am the Dome Ace... I represent their hopes and dreams... I must never fade from their sight... I must burn! Brighter and more brilliant! I must light all the gather here! I will unleash all the power that I possess! Right here and now! The final match! <player> versus the Dome Ace, Tucker! Let the battle begin!"
"Ahahaha! You're inspiring!"
If the player is defeated
"My Dome Ace title isn't just for show!"
After being defeated
"You're genuinely fantastic! Never before! I haven't ever lost in the times I've had to unleash my power. Yes, quite fantastic! Your Frontier Pass, please?"
"You're strong above all, you have a unique charm! In you, I see a definite potential for a superstar like me. I will very much look forward to our next encounter!"
Tucker appeared in Tactics Theatrics!!, where he was shown to be a superstar with a large fan base. He is undoubtedly the most famous KantoFrontier Brain and he likes to make his battles entertaining for spectators. His battles are known to attract the attention of the media, and a press conference is held whenever he has a new challenger.
Tucker's challenge consists of a Double Battle, which takes place in the Battle Dome in front of a large audience. Automatically before the battle, he allows challengers to send in their Pokémon from other locations. Even though Ash was allowed to do this, he still used two Pokémon from his current party, Corphish and Swellow.
Tucker faced off against Ash with his Arcanine and Swampert. Although he was defeated by Ash, he held a strong start for a while with his Pokémon's teamwork and strategy, including the use of the "Fusion of Fire and Water", an advanced combination which involved trapping the opponents in a water and fire whirlwind. Throughout the battle, May was very impressed by Tucker's showmanship skills and noted that his battle with Ash had some similarities to a Contest Battle. She later adapted his combination technique into her own battling style during the Kanto Grand Festival.
Tucker's actor persona feeds into the theatrics seen in his battles. He commands his Pokémon with a confident grace, and often brandishes his Pokémon and their attacks with descriptive phrases, for example "Burn with your fiery might, Arcanine use Flamethrower". Tucker's strategy is incredibly flexible, and he uses the Double Battle format to create spectacular and damaging move combinations. He attempts to draw out his opponent's best strategies in order to take them down. Tucker also prefers to attack in quick succession, and is able to have his Pokémon turn one move into another, such as Arcanine's Flamethrower into a Fire Blast. A challenger must have their Pokémon work in sync and use a gap in Tucker's timing to overcome him in battle.
Swampert was one of the two Pokémon that battled against Ash's Corphish and Swellow, and gave Ash a run for his money. While Swampert was shown to be slower than Arcanine, its defense worked in perfect combination with Arcanine's speed. In the Double Battle, Swampert's main target was Corphish. Even though it looked bad for Ash, after Tucker used the "Fusion of Fire and Water", Corphish and Swellow regained their fighting spirit and came back to win the match for Ash. Swampert was defeated by a devastating Aerial Ace from Swellow.
The other Pokémon Tucker used was Arcanine. Swampert and Arcanine were a perfect combination, taking advantage of Arcanine's speed and Swampert's defense. Arcanine's incredible agility and speed gave the impression that it could fly, making it an even match against aerial opponents like Swellow. It looked bad for Ash after Tucker's "Fusion of Fire and Water". However, Ash's Corphish and Swellow regained their fighting spirit. Corphish used Bubble Beam on Arcanine's Flamethrower to enshroud the whole stadium in a dense fog. As a result, Swellow and Corphish were able to deal the final blows to Tucker's Pokémon, with Arcanine defeated by a devastating Crabhammer from Corphish.
Tucker is one of the seven Trainers hired by Scott to be a Frontier Brain at the Battle Frontier. Tucker is first seen running late to the Battle Frontier's opening ceremony. He is interrupted by Emerald, who asks to direct him where the Battle Frontier's owner is. The incident leads into a fight, which ends with Emerald tying Tucker up and leaving backstage while he goes to interrupt the ceremony, where he announces to everyone that he wishes to conquer the Battle Frontier. The press mistakenly report the incident as allowing an ordinary Trainer to take part in the Battle Frontier before it officially opens a week later. The Frontier Brains decide to use this assumption as free publicity and allow Emerald to challenge the Battle Frontier under the condition that he completes it before it officially opens.
Later, while Emerald is challenging the Battle Pyramid, Noland is attacked by an unknown assailant and several rental Pokémon are stolen. After Noland is taken to a hospital, the other Frontier Brains begin to suspect Emerald as the culprit. They head to the Battle Pyramid to confront Emerald and find him after having defeated Brandon. When they ask him about what happened, Emerald reveals that he did not attack Noland and is actually after the Mythical Pokémon Jirachi. The Frontier Brains find Emerald's explanation suspicious, but decide to follow him into Artisan Cave, where Jirachi is currently located at. Upon arriving, everyone is attacked by a horde of wild Smeargle while Emerald continues inside to find Jirachi. After the Frontier Brains get past the Smeargle, they meet up with Emerald, who has managed to find Jirachi. Emerald attempts to capture Jirachi, but is attacked by Guile Hideout, the actual culprit who attacked Noland. When Jirachi runs off, Emerald attempts to pursue it, only to be attacked by the rental Pokémon Guile had stolen. Tucker, Brandon, Lucy, and Spenser all try to attack Guile to avenge Noland, but are easily defeated. Eventually, Jirachi escapes, forcing Guile to leave to continue his pursuit of it. Injured from the battle, everyone decides to return to the Battle Frontier. When they meet up with Scott again, he reveals that he was aware of Guile and Emerald's true mission the entire time. Scott states that he withheld the information from the Frontier Brains to help them get stronger as they still would have lost even if they had known of Guile beforehand.
The next day, visitors from around Hoenn arrive to watch and participate in the Battle Dome, which Emerald challenges to win his fifth Symbol. During the tournament, Tucker battles Sapphire in the semi-finals while Emerald battles Ruby. Eventually, both Tucker and Emerald defeats their opponents and face each other in the finals, which ends in Tucker's victory. Dejected, Emerald leaves to go challenge the Battle Palace while Tucker gloats over his victory. Just as he leaves to meet with the others, Tucker notices Guile running past the Battle Dome's window. He leaps to confront the villain, but arrives with the other Frontier Brain's just as Guile manages to successfully capture Jirachi.
Guile uses the rental Pokémon to the attack innocent bystanders and heads to the Battle Tower to make his wish. Once he arrives at the Battle Tower, Guile uses Jirachi to wish for a gigantic Kyogre made of seawater to flood the entire Battle Frontier. Tucker and the other Frontier Brains work together to get civilians to safety and fight off Guile's rental Pokémon while Emerald and the other Pokédex holders fight Guile. Eventually Emerald and the Pokédex holders manage to defeat Guile and destroy the gigantic Kyogre monster. The day after, an injured Tucker and the other Frontier Brains congratulate Emerald for the hard work he put into saving everyone.
Tucker and the other Hoenn Frontier Brains battle and defeat the Admins of Neo Team Magma and Neo Team Aqua, who had interfered in the launch of a rocket that was made to stop the meteoroid threatening to destroy the world. Later, Tucker and the other Hoenn Frontier Brains are called to Sootopolis City to assist in stopping the meteoroid.
Salamence is Tucker's first known Pokémon. He was first seen with his Trainer flying to the Battle Frontier's opening ceremony before being attacked by Emerald. During the Battle Dome tournament, Salamence was used to battle Sapphire's Rono in the semi-finals. The battle was unseen, but Sapphire was eventually defeated, which she attributed to her fear of Salamence. In the Omega Ruby & Alpha Sapphire chapter, he was seen helping Tucker fight the Admins of Neo Team Magma and Neo Team Aqua. Outside of battle, Tucker uses him as a mode of flight transportation.
Charizard is Tucker's second known Pokémon. It was first used to battle Emerald in the Battle Dome's finals. It proved to be a tough opponent and single-handedly defeated Emerald's Alakazam and Metagross despite their super-effective moves.
Metagross is Tucker's third known Pokémon. When Ruby was wondering the sequence of Tucker's Pokémon, Sapphire mentions that Metagross will go last. However, since Charizard defeated Emerald's Pokémon single-handedly, Metagross was not seen.
Tucker makes an appearance in Introducing the Frontier Brains! where he introduces himself and his two Pokémon (while admiring them) to Enta. He battles Enta in a Double Battle. He was able to defeat Enta's Vulpix but lost to his Feebas after it activated Swift Swim when Enta's Vulpix blew a hole in the roof with Flamethrower earlier. Tucker then tells Enta that his Feebas wouldn't have stood a chance against his Pokémon due to it being ugly. After the battle, Feebas evolves into Milotic, proving Tucker wrong.
Swampert was sent out in a Double Battle alongside Salamence against Enta's Vulpix and Feebas. It was able to defeat Vulpix but lost to Feebas.
Tucker is the only Frontier Brain whom Emerald didn't defeat to win a Symbol, aside from Anabel, who simply awarded him her Ability Symbol for having battled with her fairly while she was under Guile's control. In turn, Tucker is also the only Brain who never lost a fight with Emerald to yield him a Symbol, since the 10 Pokédex holders had their own tournament instead.