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Gastly Line
Gastly
Gastly RBY
Type Ghost/Poison
Abilities N/A
Gender Ratio N/A
Catch Rate 190 (24.8%)
Evolution Level 25
Haunter
Haunter RBY
Type Ghost/Poison
Abilities N/A
Gender Ratio N/A
Catch Rate 90 (11.8%)
Evolution Trade
Gengar
Gengar RBY
Type Ghost/Poison
Abilities N/A
Gender Ratio N/A
Catch Rate 45 (5.9%)

Gastly and Haunter are both available solely in the Pokémon Tower. The Silph Scope is required to catch one.

Boasting the third highest base Special of any Gen 1 Pokémon (trailing the infamous Alakazam by a mere 5 points), Normal-type immunity in a region heavily dependent on Normal-type attacks and ability to learn Psychic in a region drowning in Poison types, Gengar can cruise through most of the game by itself...in Red and Blue. Smarter boss movepools in Yellow combined with Gengar's rather lacking base HP and Defense requires it to stay out of quite a few more battles for its own safety, but when it does get a chance to shine, it shines beautifully.

'Course, this assumes you have access to Gengar to begin with. Those stuck with Haunter will have to exercise an extra layer of caution to compensate for the added frailty and power loss, but for a perpetual mid-stage 'mon, it still manages to pack quite a punch.

Important Matchups Edit

  • Gym #3 - Lt. Surge (Vermilion City, Electric-type): Voltorb and Pikachu should pose little trouble to Gastly and go down to two Psychics each, but Raichu and its Thunderbolt are more than the little ghost can handle.
  • Gym #4 - Erika (Celadon City, Grass-type): Tangela can't even touch you, and Victreebel and Vileplume can only hurt with resisted Grass-type moves. Can you say "easy victory"?
  • Gym #5 - Koga (Fuchsia City, Poison-type): He has a team full of Poison-types than can do no better than not-very-effective damage. You have an incredibly powerful pseudo-psychic. Go nuts.
  • Fighting Dojo (Saffron City, Fighting-type): More lovely Psychic spam. Only Hitmonchan can harm you, and only with its incredibly weak Fire Punch. What a joke.
  • Rival (Silph Co.): Thunderbolt for Pidgeot, Gyarados, Blastiose and Charizard, Psychic for Venusaur and either for Growlithe. Exeggcute's annoying but can only damage with Leech Seed, so feel free to tap it to death with Night Shade if you've nothing better for it. Stay the hell away from Alakazam.
  • Giovanni (Silph Co., Ground-type): The only attack he can even hit you with is Poison Sting from the Nidos. You know the drill: Psychic everything! (Or Thunderbolt for Kangaskhan, if you prefer.)
  • Gym #6 - Sabrina (Saffron City, Psychic-type): Haunter or Gengar can take out the Venomoth with Psychic but all of the actual Psychic-types are off limits.
  • Gym #7 - Blaine (Cinnabar Island, Fire-type): Growlithe and Ponyta are simple for both Haunter and Gengar. Gengar users should have little trouble Thunderbolting their way through everything here, barring lucky Fire Blast crits from Arcanine. Haunter users should only fight Rapidash if they can outspeed it, or risk being cherry-tapped to death by Fire Spin hax, and should avoid Arcanine altogether.
  • Gym #8 - Giovanni (Viridian City, Ground-type): Rhyhorn and Rhydon are completely ineffectual while the Nidos can only tickle you with Poison Sting; blast the lot with Psychic. Dugtrio, though, is fast and has Dig, and that's bad news for Gengar. Still, four out of five's on a gym with a supposed type advantage is pretty sweet, isn't it?
  • Rival (Route 22, pre-Elite Four): Exeggcute's less obnoxious without the worst of its status moves, Alakazam's turned the NOPE up a few levels by learning Psychic and the new Rhyhorn's movepool is all Normal-typed. Other than that, it's business as usual.
  • Elite Four Lorelei (Indigo Plateau, Ice-type): A Gengar should have little trouble sweeping her whole team with Thunderbolty goodness, but a Haunter might want to avoid Jynx, as well as Lapras on the off chance it's smart enough to spam Blizzard.
  • Elite Four Bruno (Indigo Plateau, Fighting-type): Three Fighting-types and a pair of Onix, all with terrible Special? Looks like it's time to break out the Psychic spam again!
  • Elite Four Agatha (Indigo Plateau, Poison-type): Psychiiiiiiiiic! Sure, her ghosts have Dream Eater, but you have a Poké Flute.
  • Elite Four Lance (Indigo Plateau, Dragon-type): Thunderbolt will quickly bring Gyarados to its lack-of-knees. The two Dragonair can harm only with Dragon Rage, so you know exactly when to heal(if needed) in between firing off Psychics. Here's the amusing part: his Aerodactyl and Dragonite? Their damaging moves are all Normal-typed. Once you're done laughing, fry them both with Thunderbolt.
  • Champion Rival (Indigo Plateau): Pidgeot's still a Thunderbolt magnet, Alakazam's still made of nope and Rhydon's still completely lacking in non-Normal moves. Gyarados is as allergic to electricity as ever. Arcanine can only cause damage with weaksauce Ember - even Haunter will have no trouble Thunderbolting or Psychic-ing it to death. Exeggutor can be dealt with, having only Normal moves, though its tendency to lock you in a Hypnosis loop means you'll need plenty of patience. Venusaur's no problem with its Grass-only movepool. Charizard and Blastoise are both easy Thunderbolt targets for Gengar, but a Haunter that's slower than Charizard should avoid it.
  • Post-Game: Psychic-type legendary? Do I even need to say what a terrible idea this would be?

  • Gym #3 - Lt. Surge (Vermilion City, Electric-type): Barring crits, Haunter should be able to Psychic Raichu into submission. Gengar's just overkill.
  • Gym #4 - Erika (Celadon City, Grass-type): Haunter/Gengar shrugs off everything Erika can throw at you while dishing out Psychic-flavored pain for the win.
  • Gym #5 - Koga (Fuchsia City, Poison-type): The trio of Venonat are easy pickings for Psychic-knowing Haunter and Gengar alike, but only Gengar should chance the Venomoth.
  • Fighting Dojo (Saffron City, Fighting-type): More lovely Psychic spam. Only Hitmonchan can harm you, and only with its incredibly weak Fire Punch. What a joke.
  • Rival (Silph Co.): Avoid Kadabra, use Psychic for Sandslash and Magneton/Jolteon and Thunderbolt for anything else. Be aware that both Electric types are dangerous if they score too many crits due to having high Special, especially for Haunter users.
  • Giovanni (Silph Co., Ground-type): The only attack he can even hit you with is Poison Sting from the Nidos. You know the drill: Psychic everything! (Or Thunderbolt for Persian, if you prefer.)
  • Gym #6 - Sabrina (Saffron City, Psychic-type): Haunter and Gengar can both handle the attackless Abra with an X Accuracy (or lots of patience) but fall back when her other Pokémon show up. Else, you can pump up Haunter or Gengar with X Special and let it curbstomp everything.
  • Gym #7 - Blaine (Cinnabar Island, Fire-type): Haunter should probably stay out of this fight altogether, though it might be able to take on Rapidash due to its tendency to stupidly attempt Normal-type attacks. Gengar shouldn't have much trouble Thunderbolting Blaine's team into submission, barring crits on his end.
  • Gym #8 - Giovanni (Viridian City, Ground-type): The amount of Earthquake in this gym is too damn high for Gengar, let alone Haunter. You can bring in your ghost for the only-Normal-type-moves Persian, but that's it.
  • Rival (Route 22, pre-Elite Four): The only notable differences from the previous encounter are that he's picked up a sad excuse for an Exeggcute and Jolteon is better off avoided due to learning Thunder.
  • Elite Four Lorelei (Indigo Plateau, Ice-type): A Gengar should have little trouble sweeping most of her team with Thunderbolty goodness, but a Haunter might want to avoid Jynx, as well as Lapras on the off chance it's smart enough to spam Blizzard. Note that Gengar can just barely survive a crit Psychic from Slowbro, but the odds of it critting are comfortably low enough to risk it. (Assuming you have a Gengar; Haunter wants nothing to do with Slowbro.)
  • Elite Four Bruno (Indigo Plateau, Fighting-type): Let the Psychic attacks flow freely! The Onix pair will die before they can cause problems with their Ground moves and the Fighting types are self-explanatory.
  • Elite Four Agatha (Indigo Plateau, Poison-type): Psychic will grant a sweep against the rest of her team, but bail when the level 60 Gengar shows up; it too has Psychic and an uncomfortably high chance of scoring a deadly crit.
  • Elite Four Lance (Indigo Plateau, Dragon-type): Thunderbolt fries Gyarados like an overdone potato. The two Dragonair have poor damage output and can be Psychic'd -assuming they're fought back-to-back, it's best to use the second as an opportunity to heal paralysis from the first if needed. Aerodactyl should be avoided, even for Gengar; it's faster, and a fairly-likely-to-crit Fly from it is nearly if not outright lethal. Gengar's monumental Special allow it weather Dragonite's seemingly threatening moves and counter with Thunderbolts for the win.
  • Champion Rival (Indigo Plateau): Sandslash has gone and learned Earthquake, so don't send any Ghosts at it. Alakazam's still not Gengar's cup of tea. Exeggutor's annoying but can only cause damage with Leech Seed, so it's doable. Ninetales should probably be avoided as Haunter due to Fire Spin hax but Gengar could manage it. Magneton/Jolteon has learned Thunderbolt, so even Gengar users should stay away. Cloyster/Vaporeon still don't enjoy being Thunderbolted. Flareon now has Flamethrower; even Gengar could have trouble and Haunter's right out.
  • Post-Game: Mewtwo? Nopity nope nope nope.

Moves Edit

Gastly starts out with Lick (too weak even with STAB), Confuse Ray (possible usage, if you like gambling) and Night Shade (handy for finishing or catching). At level 29 it learns Hypnosis, but it's accuracy is poor. At level 38 it learns Dream Eater, but it's no good without Hypnosis.

As far as TMs go, it's limited, but makes out well for a Gen 1 Pokémon. Psychic alone covers a great many of the excessively-Poison-typed Kanto region and when paired with Thunderbolt, everything save the Exeggcute line is hit at least neutrally. Mega Drain is also possible if none of your other Pokémon benefit from it more, though it only tops Psychic in damage against Rock/Ground and Rock/Water-types, the latter of which are not fought.

Recommended moveset: Psychic, Thunderbolt, Night Shade, Mega Drain / Confuse Ray

Other Edit

Gastly's stats Edit

Stat Range
At Lv. 50 At Lv. 100
HP: 30
90 - 137 170 - 264
Attack: 35
36 - 95 67 - 185
Defense: 30
31 - 90 58 - 174
Special: 100
94 - 167 184 - 328
Speed: 80
76 - 145 148 - 284
Total: 275   Other Pokémon with this total  
  • Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.


Haunter's stats Edit

Stat Range
At Lv. 50 At Lv. 100
HP: 45
105 - 152 200 - 294
Attack: 50
49 - 112 94 - 218
Defense: 45
45 - 106 85 - 207
Special: 115
108 - 183 211 - 361
Speed: 95
90 - 161 175 - 317
Total: 350   Other Pokémon with this total  
  • Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.


Gengar's stats Edit

Stat Range
At Lv. 50 At Lv. 100
HP: 60
120 - 167 230 - 324
Attack: 65
63 - 128 121 - 251
Defense: 60
58 - 123 112 - 240
Special: 130
121 - 200 238 - 394
Speed: 110
103 - 178 202 - 350
Total: 425   Other Pokémon with this total  
  • Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.


Gastly Line Ratings
Availability
4.5 Stars
Matchups
4 Stars
Movepool
4.5 Stars
Survivability
3 Stars
Type Usefulness
3 Stars
Team Role
4.5 Stars
Offensive Utility
5 Stars
Defensive Utility
3.5 Stars
Tankiness
3.5 Stars
Fun Factor
5 Stars


Overall
4.5 Stars

Note: Availability is 5 stars in Yellow due to the first two wild-containing floors of Pokémon Tower containing only the Gastly line in Yellow.

  • At what point in the game should I be evolved? Given the point you catch it at, it should probably be evolved before taking on any gyms. Evolving it into Gengar (if you have that option) can be done at any time, though the power gap starts to show up around the time you face Blaine.
  • How good is the Gastly line in a Nuzlocke? A bit redundant if you already have a Psychic- and Electric-type, but for those without, it's the best darn pseudo around.
  • Weaknesses: Ground, Psychic, Ghost
  • Resistances: Grass, Poison (x0.25)
  • Immunities: Normal, Fighting
  • Neutralities: Flying, Fire, Dragon, Electric, Rock, Ice, Water, Bug

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