Types

Types refer to different elemental properties associated with both Pokémon and their moves.

There are 18 total official types of Pokémon:

Normal

Fire

Water

Grass

Electric

Ice

Fighting

Poison

Ground

Flying

Psychic

Bug

Rock

Ghost

Dark

Dragon

Steel

Fairy

These 18 types apply to both Pokémon and their moves.

Each type has its own strengths and weaknesses, most of which are logical setups. These matchups also apply to the types of moves as well. Some types of Pokémon are also immune to a certain type of moves, regardless of its attack power.

Pokémon themselves can have up to two types, making them dual-type Pokémon, but moves can only be one type. Most if not all dual-type Pokémon's types correspond with one another. However, not all dual-type Pokémon's types relate to each other like this. Some Pokémon may be dual-type between two types that don't normally go together.

Some dual-type Pokémon lose one of their types and gain a different type upon Evolution. Some singular type Pokémon will change completely to a different type or types upon evolution. Pokémon also may completely lose a type upon evolution. Some Pokémon can also change their type altogether.

Some types have special interactions with battle effects:

Dark-type Pokémon are immune to moves that gain priority from the Ability Prankster.

Electric-type Pokémon cannot be Paralyzed.

Fire-type Pokémon cannot be Burned.

Flying-type Pokémon are not considered grounded, thus not affected by things such as Grassy Terrain and Spikes. If a Flying type uses the move Roost, it will lose the Flying typing for the rest of the turn.

Ghost-type Pokémon are immune to effects that prevent escape, and are guaranteed to flee from a wild battle.

Grass-type Pokémon are immune to the move Leech Seed, Spore and Powder moves, as well as the Ability Effect Spore.

Ground-type Pokémon cannot be Paralyzed by Electric-type moves, and don't take damage from the Sandstorm weather condition.

Ice-type Pokémon cannot be Frozen, are immune to the move Sheer Cold, and don't take damage from the Hail weather condition.

Poison-type Pokémon cannot be Poisoned, and will remove Toxic Spikes from their side if grounded, when switched in. If a Poison type uses the move Toxic, it won't miss.

Rock-type Pokémon gain a 50% Special Defense increase, and don't take damage from the Sandstorm weather condition.

Steel-type Pokémon cannot be Poisoned and don't take damage from the Sandstorm weather condition.