Ballonlea Stadium (Japanese: アラベスクスタジアム Arabesque Stadium) is the official Stadium of Ballonlea. The Gym specializes in Fairy-type Pokémon. During the Gym Challenge, Gym Challengers battle the Gym Leader Opal to earn the Fairy Badge.

After the player has earned all eight Badges, Bede, who was chosen by Opal to be her successor, takes her place as the Ballonlea Gym Leader.

In the games

Ballonlea Stadium is the largest building in the town and is the site at which the fifth installment in the Galar region's Gym Challenge takes place. It is located at the northernmost part of the town, across a wooden bridge crossing a small lake. Its exterior is primarily gray in color, with purple accents to signify the Fairy type. Like most Stadiums in the region, the Ballonlea Stadium contains a Poké Mart and a uniform shop.

Gym Challenge

Gym mission

The Gym mission is based on the premise that Gym Leader Opal is searching for a person to take her place as the Gym Leader so she can retire. In order for Opal to select a preferred candidate, challengers are made to undertake an examination as their Gym mission. The mission consists of three Trainer battles. At the end of each battle's first turn, the player is asked a question with two possible answers. Answering correctly results in a boost to some of the stats of the player's Pokémon, whereas answering incorrectly results in a stat reduction.

The correct answer to each question is in bold.

Trainers

Gym battle

Like the Gym Trainers did during the Gym mission, Opal will present several questions to the player during the Gym battle, each one at the end of a specific turn.

The correct answer to each question is in bold.

Opal will Gigantamax her Alcremie at the first opportunity.

Reward: $6,080
Held item: None Togekiss♀ Lv.37   --

Sordward and Shielbert

While pursuing Sordward and Shielbert, the player, Hop, and Piers will arrive at Ballonlea Stadium, only to learn that Bede has already taken care of most of the Dynamax Pokémon the brothers let loose in the Stadium. Before the player's group can leave, Bede demands a rematch with the player. After some assurance from Opal, the player will accept the challenge. After being defeated, Bede leaves to deal with the remaining Dynamax Pokémon at the Stadium.

Reward: $10,080
Held item: None Mawile♀ Lv.61

Items

Pokémon

A female Poké Kid in the lobby will offer to trade the player her Unovan Yamask nicknamed "Masky" in exchange for a Galarian Yamask.

Pokémon	Games		Location	Levels	Rate
Special Pokémon
	Sw	Sh		35	One
A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.

Poké Mart

This Poké Mart is located on the right side of the Ballonlea Stadium lobby.

Uniform shop

This shop is located on the left side of the Ballonlea Stadium lobby.

Male

Female

In the anime

Ballonlea Stadium appeared in The Sweet Taste of Battle!, where Opal hosted the All-Alcremie Decoration Challenge cake-decorating contest there. She sent an invitation to Ash, Goh, Chloe, Leon, and Raihan to attend the contest, not specifying what it was about until all of them had arrived. She loaned each of the contestants one of her Alcremie to provide them the cream they needed, excluding Goh, who had acquired his own Alcremie shortly beforehand.

To everyone's surprise, Ash's overly decorated cake ended up winning. Opal then challenged Ash to a battle, using her Alcremie against Ash's Pikachu. A while into the match, Opal Gigantamaxed her Alcremie and had it use G-Max Finale. Pikachu seemed to Gigantamax as well afterwards, but it turned out that he had simply grown giant due to eating the immense amounts of cream contained in Alcremie's G-Max Move, rendering him too fat and full to continue battling, so the match was called off. Later, everyone ate the cakes decorated during the contest.

Pokémon used in the Gym

In the manga

Pokémon Adventures

Before entering the Stadium, Opal asks each challenger a quiz question about her age. Depending on their answer, their Pokémon's Attack and Special Attack stats either increase or decrease drastically at the beginning of the battle.

Sword & Shield arc

Ballonlea Stadium debuted in Shocking!! Reunion in the Forest, as Henry arrived there for his fifth Gym battle. However, as Hop had applied before him, he got to challenge Opal first.

After Hop had won his battle, Henry's turn came. Despite his Sirfetch'd's stats getting lowered at the beginning of the battle due to him having answered the quiz wrong, he was still able to defeat Opal's three Pokémon without losing any of his own ones, using an Expert Belt he had received from Sonia to overcome the stat reduction. During the battle, Opal also made a public announcement of her plan to retire as a Gym Leader once the year's Gym Challenge was over.

In Chomp!! It's Dracovish, Casey was the next challenger to take on Opal. However, despite using her Gigantamax Toxtricity against Opal's Gigantamax Alcremie, Casey was still defeated, ending her run in the Gym Challenge.

In Cracking!! Brilliant Tap-Dancing, Bede visited the Gym, following an invitation from Opal. She took a liking to Bede's personality and deemed him as a fitting successor for her. Afterwards, Bede started training at the Gym in preparation for taking on the Gym Leader position.

Pokémon used in the Gym

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