- Normal
Many Pokémon that resemble real-world animals or defy classification are Normal type.
- Normal Pokémon are immune to Ghost-type attacks, and Ghost Pokémon are immune to Normal-type attacks.
- Normal Pokémon often have access to a wide variety of types for attacking moves, like Fire, Ice and Electric.
- Grass
Grass-type Pokémon often combine characteristics of plants and animals.
- Many Grass-type moves drain the target's health and heal the user by a proportional amount.
- Grass Pokémon are immune to attacks that involve the use of spores and powders.
- Fire
Fire-type Pokémon can be hard to manage but possess some of the most destructive techniques of any type.
- Many Fire-type attacks can burn their target, damaging it a little at the end of each turn while halving its physical Attack.
- Fire-type attacks become stronger in harsh sunlight, and become weaker when it's raining.
- Water
Water-type Pokémon are a diverse bunch, ranging from species that live on both land and water to fully aquatic species.
- Water-type attacks grow stronger when it's raining and lose power in harsh sunlight.
- Of all the 18 types, Water has the most Pokémon.
- Electric
Generating electricity is the specialty of these Pokémon. Younger Electric-type Pokémon discharge electricity when startled.
- Many Electric attacks can paralyze the target, drastically reducing its Speed while occasionally preventing it from moving for a turn.
- Electric-type Pokémon are only weak to one type, Ground.
- Bug
Bug-type Pokémon often evolve very early compared to other types. This makes them powerful early on, but less impressive when other Pokémon types also evolve.
- Bug-type moves are modeled after the actions of real-life bugs, and often make use of sticky webbing and sharp stingers.
- The evolution patterns of most Bug-type Pokémon represent the metamorphosis of caterpillers: larva, cocoon, adult.
- Flying
While the majority of Flying-type Pokémon are birds, they can also be dragons, butterflies, bats and more.
- Flying-type attacks represent the actions of birds or use wind powers.
- In a Triple Battle, Flying-type attacks can hit any target regardless of their position on the battlefield.
- Rock
A lot of Rock-type Pokémon have tough stone exteriors that hold up well against physical attacks.
- The Rock type has been given to the many species of Pokémon that have been revived from fossils.
- When a sandstorm hits the field, Rock-type Pokémon get a boost to their Special Defense.
- Ground
Many Ground-type Pokémon are capable of setting off frightening earthquakes when angered.
- Ground-type attacks are strong against 5 of the 18 types, the most of any type.
- Ground-type Pokémon are immune to Electric-type attacks.
- Fighting
These Pokémon possess great physical power and a mastery of martial arts techniques.
- Like the Ground type, Fighting-type attacks are also strong against 5 different types.
- Fighting is the only type that Normal is weak to.
- Poison
Time is the ally of Poison-type Pokémon, who focus on poisoning their opponents and wearing them down.
- Most Poison-type attacks can poison their target, dealing damage at the end of every turn.
- There are two types of poison, standard and toxic. Toxic poison deals more and more damage at the end of each turn.
- Psychic
These Pokémon possess telepathic and telekinetic powers. Their mind is their greatest weapon.
- In the original games, the only type that was resistant to Psychic-type attacks were other Psychic Pokémon.
- Psychic is the most common type among the Legendary Pokémon.
- Ice
Ice-type Pokémon prefer to live in cold regions and atop tall mountains. They are equipped to handle subzero temperatures.
- Some Ice-type attacks can freeze their target, preventing them from moving until they happen to thaw out.
- Ice Pokémon are the only type not hurt when it is hailing.
- Ghost
Reanimated or possessed objects and mischevious spirits make up the majority of Ghost-type Pokémon.
- Ghost Pokémon are immune to move effects that prevent them from switching out or running away.
- In the original games, Ghost-type attacks were intended to be strong against Psychic-type Pokémon but were programmed incorrectly, making Psychic-type Pokémon immune to Ghost-type attacks.
- Dragon
Dragon-type Pokémon are very rare and powerful, with some only ever mentioned in myths and legends.
- Dragon-type attacks are only strong against Dragon-type Pokémon, but are only resisted by Steel or Fairy-type Pokémon.
- Like Normal-type Pokémon, Dragon-type Pokémon often have access to a wide variety of types for attacking moves.
- Dark
Dark-type Pokémon and techniques often employ sneaky, underhanded tactics to gain an advantage.
- Theft and deception are common themes among Dark-type attacks, stealing the target's item or stat boosts.
- In previous games, Pokémon that were Dark-and-Ghost type weren't weak to any type.
- Steel
Most Pokémon types deal little damage to the cold metal exteriors of Steel-type Pokémon.
- Steel Pokémon are strong against 10 of the 18 types, the most of any type.
- In the most recent games, Steel lost its resistance to Ghost and Dark type attacks.
- Fairy
A new and recently discovered type. Rumored to have some connection with the moon.
- Most Fairy-type Pokémon have had the type added to them after being another type in previous games.
- Fairy-type Pokémon and attacks are strong against Dragon, Dark and Fighting-type Pokémon.