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Mystery Dungeon series, Game Mechanics

Weather

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Weather is a mechanic used in Pokémon games since Generation II. Weather patterns can occur from some moves or overworld effects, but all have impacts on battle. The abilities Cloud Nine and Air Lock will disable their effects

Clear Skies

No changes.

Cloudy

Pokémon Mystery Dungeon

Pokémon Go

Partly Cloudy

Pokémon Go

  • Normal & Rock types appear more often and move with this type are boosted.

Fog

Generation IV

In Battle

Outside of Battle

Generation V

Fog exists but is purely aesthetic.

Pokémon Mystery Dungeon

  • Electric-type moves do 50% less damage.
  • Castform transforms into it's Rainy form.

Pokémon Go

  • Ghost & Dark types appear more often and move with this type are boosted.

Hail

Hail (Japanese: あられ Hail) is a type of weather introduced in battle in Generation III. It was introduced in the overworld in Generation IV.

It will last for five turns if created using Snow Warning (Generation VI only) or Hail, or eight if created by a Pokémon holding an Icy Rock. If created using Snow Warning (prior to Generation VI) or encountered in the overworld, it will last until replaced.

Causes

Effects

In Battle

Outside of Battle

Pokémon Mystery Dungeon

  • Deals five points of damage to all Pokémon except Ice-type Pokémon every ten turns.

Mysterious Air Current

A mysterious air current (Japanese: 謎の乱気流 mysterious turbulence), also known as strong wind or strong winds (Japanese: 乱気流 turbulence), is a type of weather introduced in Pokémon Omega Ruby and Alpha Sapphire. They do not appear in the overworld.

A mysterious air current is created by Delta Stream and lasts until the summoner is removed from the field (and no other Pokémon with Delta Stream remain on the field), the summoner is rotated out in a Rotation Battle, the summoner has Delta Stream suppressed or replaced, or extremely harsh sunlight or heavy rain is created by Desolate Land or Primordial Sea respectively.

Causes

Effects

  • Moves that would be super effective against pure Flying-type Pokémon to deal half damage to all Flying-type Pokémon.
    • Outside of Inverse Battles, this causes Electric-, Ice-, and Rock-type moves to deal neutral damage to Flying-type Pokémon.
    • During Inverse Battles, this causes Bug-, Fighting-, Grass-, and Ground-type moves to deal neutral damage to Flying-type Pokémon.
    • If a move is not super effective against the Pokémon's other type (for dual-typed Pokémon), this no longer counts as a super effective hit (for the purposes of damage-reducing Berries, Weakness Policy, etc.).
    • This has no effect on Stealth Rock and Anticipation.
  • Causes the moves Sunny Day, Rain Dance, Sandstorm, and Hail to fail if used. This cannot be subverted even with Cloud Nine or Air Lock.
  • Causes the Abilities Drought, Drizzle, Sand Stream, and Snow Warning to fail. This cannot be subverted even with Cloud Nine or Air Lock.
  • A mysterious air current doubles the power of Weather Ball without changing its type; as such, it remains a Normal-type move.

Windy

Pokémon Go

Rain

Causes

  • Rain Dance
  • Drizzle

Effects

In Battle

  • Increases the power of Water-type moves by 50%.
  • Halves the power of Fire-type moves.
  • Activates:
  • Castform transforms into it's Rainy form.
  • Doubles the power of Weather Ball and changes it to a Water-type move.
  • Halves the power of Solar Beam.
  • Moonlight, Morning Sun and Synthesis only recover ¼ of max HP.
  • Hurricane and Thunder have 100% accuracy.
  • Hurricane and Thunder hit through Detect and Protect.DP

Outside of Battle

Pokémon Mystery Dungeon

Heavy Rain

Causes

Effects

The following will fail:

  • Damaging Fire-type moves
  • Drizzle
  • Drought
  • Hail
  • Sand Stream
  • Sandstorm
  • Snow Warning
  • Sunny Day

Pokémon Go

  • Water, Electric & Bug types appear more often and move with this type are boosted.

Sandstorm

Causes

  • Sand Stream
  • Sandstorm

Effects

In Battle

  • Damages all Pokémon for 1/16 of its maximum HP unless:
  • Rock-type Pokémon's Special Defense is raised by 50%.
  • Doubles the power of Weather Ball and changes it to a Rock-type move.
  • Halves the power of Solar Beam.
  • Moonlight, Morning Sun and Synthesis only recover ¼ of max HP.

Outside of Battle

Pokémon Mystery Dungeon

  • Deals five points of damage to all Pokémon except Ice-type Pokémon every ten turns.

Shadowy Aura

Causes

Effects

  • Damages all Pokémon except for Shadow-type Pokémon for 1/16 of its maximum HP.
  • Doubles the power of Weather Ball and changes it to a ???-type move.

Snow

  • Ice-type Pokémon have their speed raised by 1.
  • Castform transforms into it's Snowy form.

Pokémon Go

  • Ice & Steel types appear more often and move with this type are boosted.

Sunlight

Causes

  • Drought
  • Sunny Day

Effects

  • Increases the power of Fire-type moves by 50%.
  • Halves the power of Water-type moves.
  • Solar Beam can be used instantly.
  • Doubles the effects of Growth.
  • Activates:
  • Castform transforms into it's Sunny form.
  • Doubles the chance of Harvest.
  • Doubles the power of Weather Ball and changes it to a Fire-type move.
  • Prevents freezing.
  • Moonlight, Morning Sun and Synthesis recover ⅔ of max HP.
  • Lowers accuracy of Thunder and Hurricane to 50%.

Harsh Sunlight

Causes

Effects

The following will fail:

  • Damaging Water-type moves
  • Drizzle
  • Drought
  • Hail
  • Sand Stream
  • Sandstorm
  • Snow Warning
  • Sunny Day

Pokémon Go

  • Fire, Grass & Ground types appear more often and move with this type are boosted.
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