Fly (move) – bulbapedia, the community-driven pokémon encyclopedia gas density calculator

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On the turn that Fly is selected, the user will fly up high, where the only attacks it cannot avoid are Bide, Swift, and Transform. On the following turn, Fly will inflict damage, PP will be deducted from it, and it will count as the last move used. Once Fly is selected, the user will be unable to switch out unless Fly is disrupted or fully executed.

If Fly is not fully executed, PP will not be deducted from it, and it will not count as the last move used. If the opponent uses Mirror Move during the turn that the user flies up high, Mirror Move will copy the move that the user executed immediately before using Fly (or fail if it cannot).

The user may also be hit in the air if it was previously targeted by Lock-On or Mind Reader, and then struck the following turn, unless said move was Magnitude, Earthquake or Fissure. Swift, Bide and Transform no longer hit on their own during the semi-invulnerable turn of Fly.

In this generation, due to a glitch, when Lock-On or Mind Reader are in effect, the moves Attract, Curse, Foresight, Mean Look, Mimic, Nightmare, Spider Web and Transform cannot hit targets in the semi-invulnerable turn of Fly, and moves cannot lower stats of targets in the semi-invulnerable turn of Fly ( status moves such as String Shot will fail, and additional effects of moves such as Bubble will not activate).

Fly’s base power was increased from 70 to 90. The user is now unable to avoid moves used by Pokémon with the Ability No Guard during the semi-invulnerable turn of Fly, and unable to avoid moves if it has No Guard. It can also be hit with Hurricane, Smack Down and Thousand Arrows. If Smack Down or Thousand Arrows hits, the user of Fly will be knocked down, cancelling the move.

Players can fly to locations they have visited. Most possible Fly destinations are places with Pokémon Centers, primarily cities and towns, but other significant locations can be flown to as well. Generally, simply entering a flyable location is all that is required to be able to use Fly for that location. There are some exceptions, however, such as Opelucid City in Black and White where the player must first view the Team Plasma event, Lacunosa Town in Black 2 and White 2 where the player must first encounter Professor Juniper and Bianca, and Ever Grande City in Ruby, Sapphire, and Emerald where the player must first climb the waterfall. The Johto Battle Frontier, by contrast, can automatically be accessed after the National Pokédex is obtained.

Players can fly to any area marked on the PokéNav Plus’s Town Map except Southern Island, Seafloor Cavern, and the Cave of Origin. When the player flies to a route, or a landmark such as Sea Mauville, they will land in front of a sign that marks the area if there is one. In addition to the Party menu, players can use Fly through the AreaNav.

• Many Pokémon noted for their ability to fly over long distances are unable to learn this move, such as Yanmega, which is easily capable of transporting an adult in flight according to its Pokédex entry from HeartGold. Conversely, Pokémon such as Vullaby can learn it despite Pokédex entries stating they are incapable of flight.