Gastly is a fascinating Ghost and Poison-type Pokémon that has no true form, as 95% of its body consists of poisonous gas, while the remaining 5% is believed to be composed of the souls of those who died from the gas. Despite its gaseous nature, it consistently appears as a black, spherical Pokémon surrounded by a purple haze with a wide, pink mouth featuring two visible fangs. Gastly produces a faint, sweet smell and its toxic gas can induce fainting and suffocation in anyone who encounters it. As one of the lightest Pokémon in existence, weighing only 0.2 pounds (0.1 kg), Gastly's gaseous form makes it vulnerable to strong winds, causing it to huddle together with others under house eaves for protection. The Pokémon has a playful personality, often frightening and playing pranks on people for fun, but it also shows a willingness to preserve or pass on memories of departed humans. Gastly can change form, create illusions, and phase through solid objects while forming tangible hands from its gases. It's known to sleep while floating, and approaching a sleeping Gastly may result in a sudden surprise. Should a strange light be seen flickering in an abandoned building, it's likely that Gastly is lurking there.
Pokédex Data
- National Pokédex Number: 092
- Type: Ghost/Poison
- Height: 4'3" (1.3m)
- Weight: 0.2 lbs (0.1 kg)
- Catch Rate: 190 (24.8% with PokéBall at full HP)
- Base Experience: 62
- Growth Rate: Medium Slow
Breeding
- Egg Groups: Amorphous
- Gender Ratio: 50% male, 50% female
- Egg Cycles: 20 (4,884–5,140 steps)
- Compatible with: Can breed with many Pokémon through Ditto
Pokédex Entries Across Versions
- Black/White/Black 2/White 2: "Born from gases, anyone would faint if engulfed by its gaseous body, which contains poison."
- X: "Its body is made of gas. Despite lacking substance, it can envelop an opponent of any size and cause suffocation."
- Y: "Born from gases, anyone would faint if engulfed by its gaseous body, which contains poison."
- Omega Ruby/Alpha Sapphire: "Gastly is largely composed of gaseous matter. When exposed to a strong wind, the gaseous body quickly dwindles away. Groups of this Pokémon cluster under the eaves of houses to escape the ravages of wind."
- Sun: "Should a strange light be seen flickering in an abandoned building, Gastly is lurking there."
Evolutions
- Gastly evolves into Haunter at level 25
- Haunter evolves into Gengar when traded
Habits
- Gastly can be found within caves and old, dilapidated buildings, but may also be seen outdoors during nighttime
- It huddles together in decent-sized groups under house eaves to avoid strong winds that would cause its gaseous body to dwindle away
- May cause flickering lights in abandoned buildings
- Known to sleep while floating
- Its favorite mode of attack is to envelop its prey with its body and suffocate them until they pass out
- Enjoys putting its foes to sleep, implying it might do this to people in the middle of the night
Additions Across Generations
- In Generation 1, Gastly had a base Special stat of 100
- In Generations 1-4, Gastly had a base experience yield of 95
- In Generations 2-7, Gastly had a base Friendship value of 70
- In Generation 1, Night Shade was its signature move