Double Battle

A Double Battle (Japanese: ダブルバトル Double Battle), also known as a two-on-two battle, is a Pokémon battle with each side featuring two at once. Debuting in the games in Generation III, and featuring occasionally in the anime prior to this, they may feature up to four Pokémon Trainers. A Double Battle with two Trainers per side who each control one Pokémon is called a Multi Battle.

In the games
In a Double Battle, two teams of two Pokémon face each other in battle. One Trainer may control both Pokémon on either side of the battle, or two Trainers may cooperate on one or both sides of the battle, each controlling their own Pokémon (meaning that anywhere from two to four Trainers may take part in a Double Battle).

Some, such as and , automatically engage the player in Double Battles; in Generation III, they will only battle if the player steps on the tile directly in front of them, from Generation IV to  they can move towards the player to initiate such battles, and in Generation VII they can battle the player from afar but remain stationary (like all other Trainer classes in those games). If the player has only one conscious Pokémon, Trainer classes who will only engage the player in Double Battles will ignore the player and comment that the player should bring two Pokémon to battle them with.

From to Generation V, two independent Trainers who see the player at the same time will engage the player in a Double Battle. If the player has only one conscious Pokémon, the two Trainers who see the player at the same time will take turns battling the player in two Single Battles, with the second Trainer approaching and battling the player immediately after the first Trainer is defeated.

In, all battles that the player participates in are battled as Double Battles. The only way to engage in a Single Battle in Pokémon Colosseum is to do so in battle mode. However, the player does watch a Single Battle between Eagun and Skrub.

In, the first two battles in the game—against Chobin and Naps—are Single Battles, as are all wild battles and one optional battle against a at the entrance to the Pokémon HQ Lab. Some Trainers in Mt. Battle only use one Pokémon, so it is possible to battle them in a Single Battle. The player also watches two Single Battles involving Zook—one with Ardos and one with Biden.

From Generation IV onward, moves that target multiple Pokémon resolve in order of the target's respective Speed stats. If a Pokémon faints, it is not replaced until the end of the turn, rather than immediately after the Pokémon is knocked out, making it possible for a Pokémon's move to fail due to a lack of target if both of the opposing Pokémon are knocked out before it attacks.

In Generation IV and, some NPCs (most notably the stat Trainers in ) accompany the player while they explore certain areas. In these situations, all wild Pokémon encounters are Double Battles against two Pokémon. In such situations, it is impossible to use a Poké Ball to capture a Pokémon unless the other is knocked out first. The NPC Trainer will heal the player's team after every battle. The player cannot use movement-based field moves such as or  while accompanied by an NPC.

In Generation V, many routes contain, in which the player has the ability to encounter two wild Pokémon at a time, initiating a wild Double Battle. Similar to the wild Double Battles of Generation IV, it is impossible to use a Poké Ball to catch a Pokémon unless the other Pokémon is knocked out first.

The HP of Pokémon is not displayed numerically on the player's side in Generation III and Generation IV—only the bar will be shown to save screen space. The numeric amount of HP can be toggled with the Start button.

Effects on moves
Several different moves are made specifically for Double Battles, such as. Some others, such as, can have noticeably different effects. In Generation III, if there is more than one target, moves that can hit both foes (but not moves that hit all Pokémon on the field, such as ) have their damage reduced by 50%. In subsequent games, if there is more than one target, any move that can hit multiple Pokémon has its damage reduced by 25%.

The moves, , , , , , , , and have no effect in Single Battles, but do in Double Battles.

The move takes away 1/16th of the maximum HP of the other Pokémon on the same team as the target Pokémon. This damage is not treated as an attack.

The move, while in a Double Battle, can target the ally instead of the user.

The moves, , , target the user when selected, but are used against one random foe when executed.

This chart displays all moves that work differently in Double Battles.

Effects on Abilities
Many Abilities are also adapted especially for Double Battles. These Abilities are:


 * - If a single-target move is used, it will be forced to strike the Pokémon with this Ability, regardless of the Pokémon originally selected as the target and regardless of the move's accuracy. Moves which target multiple Pokémon cannot be redirected. In Generation V and beyond, the move will raise the  of the Pokémon and deal no damage to it, unless the Pokémon is immune to the attack by nature of being a.
 * - If a Pokémon with Plus is in battle on the same side of the field as a Pokémon with Minus, its will be boosted by 50%. In Generation V and beyond, the effect is also present if another Pokémon on the same side has Plus.
 * - If a Pokémon with Minus is in battle on the same side of the field as a Pokémon with Plus, its will be boosted by 50%. In Generation V and beyond, the effect is also present if another Pokémon on the same side has Minus.
 * - If a single-target move is used, it will be forced to strike the Pokémon with this Ability, regardless of the Pokémon originally selected as the target and regardless of the move's accuracy. Moves which target multiple Pokémon cannot be redirected. In Generation V and beyond, the move will raise the  of the Pokémon and deal no damage to it.
 * - The physical and  of Pokémon with this Ability and their ally are increased by 50% during harsh sunlight.
 * - At the end of each turn, an ally's status condition has a 30% chance of being cured.
 * - Damage done to allies is reduced by 25%.
 * - A Pokémon with this Ability will avoid damage from any moves used by its ally, whether they directly target it or target it as well as opponents.
 * - The accuracy of moves used by Pokémon with this ability and their ally are increased by 10%.
 * - Pokémon with this ability and their ally cannot be afflicted by, , , and , , and.
 * - Prevents stat drops and status conditions for Pokémon with this Ability (if ) and a Grass-type ally.
 * - Pokémon with this ability and their ally cannot fall.
 * - The base power of allies' special moves is increased by 30%.
 * - If an ally faints in battle, Receiver will be replaced by the fainted Pokémon's Ability.
 * - If an ally faints in battle, Power of Alchemy will be replaced by the fainted Pokémon's Ability.

In the anime
While had conducted "illegal" Double Battles since the third episode, the first official Double Battle occurred in Pokémon Double Trouble. In order to win the, Ash had to defeat Luana's and  in a Double Battle. Though Ash's Pikachu and were initially unwilling to cooperate, they eventually overcame their differences in order to win the battle. A notable difference about this Double Battle compared to the ones introduced later is that winning the match requires only defeating one of the opposing Trainer's two Pokémon.

After the release of, Double Battles were seen in the anime more often. The first took place in All in a Day's Wurmple. Forrester Franklin introduced the concept to Ash, and they had a battle that Ash won. As in the games, Ash's Gym against Tate and Liza was a Double Battle. Additionally, in order to qualify for the finals of the Ever Grande Conference, competitors must win three Double Battles in the preliminaries.

Ash had a Double Battle against Dome Ace Tucker at the Battle Dome in Tactics Theatrics!!. He used his and  against the Frontier Brain's  and  and was able to win the battle, earning the Tactics Symbol, his third Symbol overall.

From The Bicker the Better onwards, Ash teamed up with other Trainers to conduct Tag Battles.

A Double Battle can also be conducted under Contest Battle rules; more specifically, the battling stage of every Grand Festival uses the Double Battle style. Additionally, with the introduction of Double Performances in the, s have to use two Pokémon in both the Performance Stage and the Battle Stage of Pokémon Contests following the format.

In Strategy Begins at Home!, challenged her mother, Johanna, to a Double Battle. Despite having developed a strategy which her and  managed to pull off during battle, Dawn still had trouble dealing with Johanna's skills as a Top Coordinator and her well-trained  and. As a result, she lost the battle. In Double-Time Battle Training!, Dawn faced off against Zoey in a Double Battle, using her and  against her rival's  and. During the battle, Dawn attempted to use a newly developed combination, but it failed and Zoey emerged victorious.

In Battling the Bully!, there was a pretend Double Battle between and Glenn, both using borrowed Pokémon.

Ash battled Shamus, 's original Trainer, in a Double Battle in Evolution by Fire!. During the battle, Tepig evolved, giving him enough power to earn victory for his new Trainer.

battled in a Double Battle in Battling with Elegance and a Big Smile!. During the battle, Serena's evolved into, allowing her and  to even the playing field. However, Aria had to cancel the battle because of an urgent phone call.

Ash battled Olympia in a Double Battle in All Eyes on the Future! at the Anistar Gym. The battle ended in Ash's victory, earning him the.

In Trials and Determinations!, Ash's grand trial battle against Olivia was a Double Battle. The battle eventually ended in Ash's victory, earning him a Rockium Z.

battled Faba in a Double Battle in Mission: Total Recall! at a Motel. The battle ended in Faba's victory after he defeated both of Gladion's Pokémon and put him asleep with his 's.

Ash battled in a Double Battle in Acting True to Form! at Pokémon School. However, the battle was called off after Ash's Pikachu discovered trying to steal Ash's Rowlet.

In The Electric Tale of Pikachu manga
Similar to the, Double Battles appeared in The Electric Tale of Pikachu before they were formally introduced in the games.

In the Pokémon Adventures manga
Double Battles were formally introduced into Pokémon Adventures in the, though multiple Trainers or Pokémon teaming up were common before. They first appeared in Adding It Up with Plusle & Minun I, when challenges a  and a. They later appear in On the Loose and Hyper With Zangoose and Seviper I when Ruby and a are spotted by a  and a. In You Can Fight Day or Night With Lunatone & Solrock Tate and Liza explicitly state Double Battle tactics during their battle with Blaise, but are overwhelmed by their opponent's illusions.

In the, during the challenge set by Ultima, and  fight a Double Battle against each other in the Path of Battling. Here, the trainers are separated by a fence, and the floor they stand on may slide in either direction during the battle, depending on their performance. However, Red and Blue step out from the other end of the path at exactly the same time, meaning that the battle is tied.

Double Battles also make a few appearances in the. In Dramatic Drapion & Crafty Kricketune I, and  battle two s at Lake Valor, and in Vexing Vespiquen & Unmanageable Mothim, Diamond and Riley battle two s on Iron Island.