Freeze

Effect Summary

Prevents a Pokémon from using almost all moves, except for those that have a chance to thaw it out. Has a 20% chance to thaw itself out every turn.

Detailed Effect

A frozen (FRZ) Pokémon is unable to use any move.
Each turn, it has a 20% chance to thaw itself out.
Frozen Pokémon can be thawed out by:

using various items
being hit by Fire -type move
using certain moves such as Scald

Ice -type Pokémon can not become frozen.

Effects that interact with the Freeze status condition:

Pokémon with the ability Magma Armor, Comatose or Purifying Salt are completely immune to Freeze.
Pokémon with the ability Shield Dust or those holding Covert Cloak

can only be frozen it the freeze is a side-effect of the move.
A Pokémon can be frozen during harsh sunlight

.
Aromatherapy and Heal Bell cure the user's entire party.
Pokémon with the ability Natural Cure are cured after switching out.
Pokémon with the ability Hydration are cured during rain

Pokémon with the ability Shed Skin have a 30% chance to be cured at the end of each turn.

Safeguard and Misty Terrain protect the user's party from being burned.

Other Effects

A frozen Sky Form Shaymin

will return to its Land Form. A frozen wild Pokémon receives a 1.5x multiplier to its catch rate.

Changes

In Gen 1 Pokémon have a 0% chance to thaw themselves automatically.
There are also a various bugs with this status condition including:
- PP rolling over from 0 to 63 when using 0 PP move directly after thawing out
- Link battles being desynchronized
- Using a glitch move instead of the selected move if using a move without every hovering over another move right after thawing out in Link battles.
In Gen 1-2 only Fire -type moves that have a chance to burn the target can thaw out frozen Pokémon.
In Gen 2 Pokémon have a ~10% chance to thaw themselves out after each turn.
An Ice -type Pokémon can be frozen by Tri-Attack.
In Gen 2-3 a Fire -type move produced by Hidden Power can not thaw out a Pokémon.
In Gen 3-4 Heal Bell does not cure the freeze of any Pokémon with the ability Soundproof.
In Gen 4 the ability Flash Fire is disabled when the user is frozen.
In Gen 5 frozen Pokémon have a blue glow.