Bond Phenomenon

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File:Ash Greninja Lumiose Conference.png
Ash and his Greninja have perfected the transformation

Bond Phenomenon (Japanese: キズナ現象 Bond Phenomenon) is a transformation affecting Pokémon that was introduced in Pokémon the Series: XY. It is said to have some connection to the Pokémon's hidden potential.

Unlike Mega Evolution or Primal Reversion, the transformation does not require any specific items for either the Trainer or the Pokémon, though in the games it requires the ability Battle Bond. So far, the only known Pokémon to have this transformation is Greninja. In this form, the strength of Greninja's legs are superior to that of an ordinary Greninja. Additionally, it gains the ability to form large-sized Water Shurikens on its back.

Pokémon capable of Bond Phenomenon

Pokémon Before Bond Phenomenon After Bond Phenomenon
Image Type Ability Image Type Ability
Greninja Greninja  Water  Dark  Battle Bond Ash-Greninja  Water  Dark  Battle Bond

In the games

Bond Phenomenon made its core series debut in the form of a Greninja that can be transferred to Pokémon Sun and Moon from the Special Demo Version. This unique Greninja possesses the Battle Bond Ability, which triggers the transformation after the opposing Pokémon has fainted and increases the power of Water Shuriken. This alternate form is called Ash-Greninja (Japanese: サトシゲッコウガ Satoshi Gekkouga). In addtion, the base Battle Bond Greninja, before transforming, are treated as an alternate form separate from Greninja with Torrent or Protean.

#658 Greninja
Battle Bond Greninja
File:Poké Ball summary IV.png Level 37 (met at level 5) 90px
Water Dark
Ability: Battle Bond
Held item: None
ID: 131017
OT: サトシ
Met: the Kalos region (fateful encounter)
Nature: Random
Ribbon: Souvenir Ribbon Souvenir Ribbon
Water Shuriken
Water Special
Aerial Ace
Flying Physical
Double Team
Normal Status
Night Slash
Dark Physical
Games Method Region Location Duration
SM hide all Pokémon Sun and Pokémon Moon Special Demo Version November 18, 2016 onwards
Moves in bold can be taught again at the Move Reminder as a special move if forgotten.
Date received is the date on the system when the gift is picked up from the deliveryman.
This Pokémon's origin is the same as the language chosen in the demo, regardless of the language of the receiving game.

Ash-Greninja also appears in Pokémon Shuffle, Pokémon Picross, Pokémon Tretta, and Super Smash Bros. Ultimate.

In the anime

File:Ninja Village's Hero Greninja.png
Depiction from the Ninja Village of a Greninja who achieved the transformation

In the Pokémon anime, Bond Phenomenon first appeared in A Festival of Decisions!, in which Ash's Frogadier evolved into Greninja and assumed the Ash-Greninja form. However, the transformation would not be addressed by name until Kalos League Passion with a Certain Flare!, in which Professor Sycamore, after researching the matter, reported his results to Ash and his friends.

In the anime, Bond Phenomenon may be achieved when the trust between the Trainer and the Pokémon reaches maximum. While a Pokémon and Trainer are using this form, the Trainer shares the Pokémon's pain in the same place the Pokémon was dealt damage. The Trainer can also share the Pokémon's point of view. If the form is not mastered, the Trainer and Pokémon can pass out from exhaustion.

In the manga

Pokémon Journeys: The Series

Ash's Greninja appears in a fantasy in Legend? Check! Friends? Check!, where it is seen in its Ash-Greninja form.

In the TCG

In the Pokémon Trading Card Game, Ash's Greninja in its Ash-Greninja form is featured as a Promotional PokémonEX card.

Related cards
Cards listed with a blue background are only legal to use in the current Expanded format.
Cards listed with a silver background are legal to use in both the current Standard and Expanded formats.
Card Type English
Rarity # Japanese
Rarity #
Ash-GreninjaEX 20px XY Black Star Promos   XY133 XY-P Promotional cards   218/XY-P
      XY-P Promotional cards   290/XY-P

In other languages

Language Title
Chinese Cantonese 牽絆現象 Hīnbuhn Yihnjeuhng
Mandarin 牽絆現象 / 牵绊现象 Qiānbàn Xiànxiàng
20px Danish Båndfenomen
20px Dutch Vertrouwensbandfenomeen
20px Finnish Sideilmiö
20px French Phénomène de Synergie
20px German Freundschaftsphänomen
20px Italian Effetto Sintonia
20px Korean 유대현상 Yudae Hyeonsang
20px Norwegian Båndfenomen
20px Polish Zjawisko Więzi
Portuguese 20px Brazil Fenômeno Vincular
20px Portugal Fenómeno da ligação
20px Russian Узы доверия Uzy doveriya
Spanish 20px Latin America Sinergia afectiva
20px Spain Metamorfosis afectiva
20px Swedish Bandfenomen
20px Turkish Bağ Fenomeni

See also

Pokémon transformations
Mega EvolutionPrimal ReversionBond PhenomenonUltra BurstDynamax (Gigantamax)

80px This article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.