Ultimate Battle

An Ultimate Battle (Japanese: 究極高難度バトル) is a special type of permanent battle content in Pokémon Masters EX. Introduced on November 14, 2023, these battles have the difficulty level Ultimate and pit the player against a powerful sync pair generally formed with a Legendary Pokémon. Ultimate Battles are standard team battles, so players can use up to three sync pairs at once to battle the boss sync pair and their allies. Some boss sync pairs endure the first attack that would put them below a certain percentage of their maximum HP with that percentage of their maximum HP, similar to the HP bars used by Legendary Arena bosses.

Ultimate Battles are accessed from the Challenge the Strong menu in the Side Area section. This menu is unlocked after the player completes the Champion Stadium on Hard Lv. 1 difficulty for any region.

Each Ultimate Battle awards the player with 300 Gems the first time it is completed. There are no rewards for completing the battle subsequent times.

Anabel's Flickering Flames

Anabel was the first Ultimate Battle boss, forming a sync pair with Entei. This battle was first made available on November 14, 2023. Anabel and Entei and their allies are weak to Water-type moves.

Anabel and Entei set harsh sunlight upon entering battle and each time they use their sync move. They and their allies have several passive skills that give them benefits in sunny weather, such as powering up their attacks and reducing the damage they take. Anabel and Entei take less damage from attacks the more their stats have been raised in total, and field effects they set are permanent unless replaced. In addition, Anabel and Entei endure the first attack that would put them below 60% of their maximum HP with 60% of their maximum HP. So, the recommended strategy is to change the weather and lower Anabel and Entei's stats. Also, attacks from Anabel and Entei are powered up if their target is burned.

Battle

Name	Difficulty	Trainer	Pokémon			First-Time Rewards
Name	Difficulty	Trainer	Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Anabel	Ultimate	Anabel	Arcanine Weakness:	Entei Weakness:	Ninetales Weakness:	Gems ×300
Challenge a Super Serious Anabel	Ultimate	Anabel	HP: 173,250	HP: 924,000	HP: 173,250	Gems ×300

Thorton's Freezing Frost

Thorton was the second Ultimate Battle boss, forming a sync pair with Articuno. This battle was first made available on December 8, 2023. Thorton and Articuno and their allies are weak to Fire-type moves.

Thorton and Articuno endure the first attack that would put them below 60% of their maximum HP with 60% of their maximum HP. Thorton and Articuno and their allies have their Defense and Special Defense tripled when they are not affected by a negative status change. Thorton and Articuno have their Defense tripled upon entry, but this switches to Special Defense when they reach 60% of their maximum HP. Meanwhile, their allies have their Defense tripled the whole time. In addition, Thorton and Articuno and their allies' attacks are powered up when their Defense is raised. So, the recommended strategy is to inflict negative status changes, lower the opponents' Defense, and use both physical and special attacks.

Battle

Name	Difficulty	Trainer	Pokémon			First-Time Rewards
Name	Difficulty	Trainer	Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Thorton	Ultimate	Thorton	Avalugg Weakness:	Articuno Weakness:	Steelix Weakness:	Gems ×300
Challenge a Super Serious Thorton	Ultimate	Thorton	HP: 88,550	HP: 654,500	HP: 88,550	Gems ×300

Darach's Daring Wings

Darach was the third Ultimate Battle boss, forming a sync pair with Staraptor. This battle was first made available on January 9, 2024. Darach and Staraptor and their allies are weak to Rock-type moves.

Darach and Staraptor endure the first attack that would put them below 40% of their maximum HP with 40% of their maximum HP. They and their allies have several passive skills that give them benefits when they are unaffected by any field effects, such as powering up their attacks and tripling their Defense and Special Defense. In addition, the opponents have relatively lower resistance to Damage Fields, but when Darach and Staraptor's HP reaches 40% or lower, they won't receive any damage from them. So, the recommended strategy is to set up field effects such as Damage Fields and weather conditions.

Battle

Name	Difficulty	Trainer	Pokémon			First-Time Rewards
Name	Difficulty	Trainer	Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Darach	Ultimate	Darach	Talonflame Weakness:	Staraptor Weakness:	Aerodactyl Weakness:	Gems ×300
Challenge a Super Serious Darach	Ultimate	Darach	HP: 57,750	HP: 589,050	HP: 57,750	Gems ×300

Argenta's Glistening Crystals

Argenta was the fourth Ultimate Battle boss, forming a sync pair with Suicune. This battle was first made available on February 16, 2024. Argenta and Suicune and their allies are weak to Grass-type moves.

Argenta and Suicune endure the first attack that would put them below 50% of their maximum HP with 50% of their maximum HP, and will remove any negative status changes inflicted on them and their allies. Argenta and Suicune make the weather rainy upon entering battle and the first time their HP reaches below 50% of their maximum HP. Also, the Lass and Slowbro set up a Psychic Terrain upon entering battle or by using Psychic Terrain. Argenta and Suicune and their allies have several passive skills that give them benefits in rainy weather, such as powering up their attacks, reducing the damage they take and protecting them from status conditions and certain negative status changes. They also have their moves powered up when Psychic Terrain is in effect. Field effects they set are permanent unless replaced. In addition, Argenta and Suicune and their allies have their Defense and Special Defense tripled when they are unaffected by negative status changes. So, the recommended strategy is to change the weather and terrain, and inflict negative status changes.

Battle

Name	Difficulty	Trainer	Pokémon			First-Time Rewards
Name	Difficulty	Trainer	Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Argenta	Ultimate	Argenta	Slowbro Weakness:	Suicune Weakness:	Starmie Weakness:	Gems ×300
Challenge a Super Serious Argenta	Ultimate	Argenta	HP: 92,400	HP: 716,100	HP: 92,400	Gems ×300

Palmer's Rumbling Might

Palmer was the fifth Ultimate Battle boss, forming a sync pair with Regigigas. This battle was first made available on March 9, 2024. Palmer and Regigigas and their allies are weak to Fighting-type moves.

Due to the combination of their passive skills, attacks from Palmer and Regigigas and their allies always land a critical hit, even if the player's team has passive skills like Vigilance. Field effects they set are permanent unless replaced. In addition, upon using their first sync move, Palmer and Regigigas set up a Normal Zone, immediately followed by a Max Strike that hits all opponents due to the passive skill Targets Maxed. After Palmer and Regigigas use their sync move, their sync buff is raised by an additional three ranks, making it practically impossible to survive Max Strike. So, the recommended strategy is to defeat Palmer and Regigigas before they use their sync move.

Battle

Name	Difficulty	Trainer		Pokémon			First-Time Rewards
Name	Difficulty	Trainer		Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Palmer	Ultimate	Palmer	Barry	Snorlax Weakness:	Regigigas Weakness:	Empoleon Weakness:	Gems ×300
Challenge a Super Serious Palmer	Ultimate	Palmer	Barry	HP: 148,995	HP: 549,780	HP: 148,995	Gems ×300

Lucy's Entangling Venom

Lucy was the sixth Ultimate Battle boss, forming a sync pair with Seviper. This battle was first made available on April 9, 2024. Lucy and Seviper and their allies are weak to Ground-type moves.

Lucy and Seviper endure the first attack that would put them below 80% and 40% of their maximum HP with 80% and 40% of their maximum HP respectively, and will remove any status conditions and negative status changes inflicted on them. Lucy and Seviper and their allies have their attacks powered up when their Speed is raised. In addition, their moves with a chance of poisoning the target are guaranteed to do so thanks to their passive skill, with their attacks being powered up against poisoned opponents. So, the recommended strategy is to lower the opponents' Speed and prevent the player's team from being poisoned.

Battle

Name	Difficulty	Trainer	Pokémon			First-Time Rewards
Name	Difficulty	Trainer	Left	Middle	Right	First-Time Rewards
Challenge a Super Serious Lucy	Ultimate	Lucy	Nidoking Weakness:	Seviper Weakness:	Nidoqueen Weakness:	Gems ×300
Challenge a Super Serious Lucy	Ultimate	Lucy	HP: 200,200	HP: 327,250	HP: 200,200	Gems ×300

Trivia

The first Ultimate Battle featured the same Legendary Pokémon opponent as the first Legendary Arena, Entei. They also have the same weakness, Water.
- Also, the second Ultimate Battle featured opponents with the same weakness as the opponents of the second Legendary Arena, Fire.
Thorton's Freezing Frost is the first Ultimate Battle where one of the Trainers does not match the battle's primary type; in this case, the Scientist's Steelix is a Steel/Ground type rather than an Ice type.
Palmer's Rumbling Might is the first Ultimate Battle to feature a Trainer outside of non-playable Trainers as well as the first one to feature more than one leader; in this case, Barry.

In other languages

Language		Title
Mandarin Chinese		究極高難度對戰
French		Combat ultime
German		Ultimativer Kampf
Italian		Lotta a difficoltà suprema
Korean		궁극 고난도 배틀
Spanish		Combate imposible

This article is part of Project Sidegames, a Bulbapedia project that aims to write comprehensive articles on the Pokémon Sidegames.