#094 GengarAll 251 Pokémon#096 Drowzee
Gengar’s Pokédex · Kanto · Generation I
#095 Onix
RockGround
- SpeciesRock Snake Pokémon
- Japanese nameIwark
- PronunciationON-ICKS
- Height28′ 10″ 8.79 m
- Weight463.0 lb 208.35 kg
- Gender♂ 50% · ♀ 50%
PokédexWhere to findType matchupsMovesBreedingStats
Name meaning
Comes from ONYX (note to spelling), a semi-precious stone.
Evolution
OnixTrade an Onix with Metal Coat attached
Steelix
Pokédex entries
| RedBlue | As it grows, the stone portions of its body harden to become similar to diamond, but colored black. |
|---|---|
| Yellow | Burrows at high speed in search of food. The tunnels it leaves are used as homes by DIGLETTS. |
| Stadium | Its large body is over 26 feet long. Despite its size, it can squirm its way through the ground at 50 mph. |
| GoldStadium 2 | It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way. |
| Silver | It rapidly bores through the ground at 50 MPH by squirming and twisting its massive, rugged body. |
| Crystal | As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid. |
Where to find Onix
| Game | Where to find it | Time | Rarity |
|---|---|---|---|
| Blue | Rock Tunnel, Victory Road | NA | Few |
| Red | NA | Few | |
| Yellow | NA | Few | |
| Gold | Victory Road, Mt. Silver, Rock Tunnel, Union Cave, Violet City (In-Game Trade)(House in the SW corner) | Any | Many |
| Silver | Any | Many | |
| Crystal | Any | Many |
How to catch
| Ground | Surf | Fishing | Forest Tree | Mountain Tree | Rock Smash | Breed | Evolve | Event | BugCatch | Game Corner | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R/B | ✓ | ||||||||||
| Yellow | ✓ | ||||||||||
| G/S | ✓ | ✓ | ✓ | ||||||||
| Crystal | ✓ | ✓ | ✓ |
✓ marks how you can get it in each game. Shaded boxes are methods that didn’t exist in that game.
Type matchups
Defence: damage taken from each attack type
- Normal×0.5
- Fire×0.5
- Water×4
- Electric×0
- Grass×4
- Ice×2
- Fighting×2
- Poison×0.25
- Ground×2
- ×0.5
- Psychic×1
- Bug×1
- Rock×0.5
- Ghost×1
- Dragon×1
- Dark×1
- Steel×2
- Gold, Silver & Crystal: 6 weaknesses and 6 resistances out of 17 types. Defence ratio 1 : 1 (100%).
- Red, Blue & Yellow: 5 weaknesses and 6 resistances out of 15 types. Defence ratio 5 : 6 (83%).
- This Pokémon has more weaknesses in GSC than RBY. So there is a better defense ratio in RBY.
Offence: same-type attacks against each type
- Normal1st: Normal 2nd: Normal
- Fire1st: Good 2nd: Good
- Water1st: Normal 2nd: Normal
- Electric1st: Normal 2nd: Good
- Grass1st: Normal 2nd: Bad
- Ice1st: Good 2nd: Normal
- Fighting1st: Bad 2nd: Normal
- Poison1st: Normal 2nd: Good
- Ground1st: Bad 2nd: Normal
- 1st: Good 2nd: No Effect
- Psychic1st: Normal 2nd: Normal
- Bug1st: Good 2nd: Bad
- Rock1st: Normal 2nd: Good
- Ghost1st: Normal 2nd: Normal
- Dragon1st: Normal 2nd: Normal
- Dark1st: Normal 2nd: Normal
- Steel1st: Bad 2nd: Good
- Gold, Silver & Crystal: 9 advantages and 6 disadvantages out of 34 types. Offensive ratio 3:2 (150%).
- Red, Blue & Yellow: 8 advantages and 5 disadvantages out of 30 types. Offensive ratio 8:5 (160%).
Moves learned by levelling up
| R/B/Y | G/S/C | Move | Type | Kind |
|---|---|---|---|---|
| Start | Start | Tackle | Normal | Physical |
| Start | Start | Screech | Normal | Status |
| 15 | 10 | Bind | Normal | Physical |
| 19 | 14 | Rock Throw | Rock | Physical |
| 43 | 23 | Harden | Normal | Status |
| 25 | 27 | Rage | Normal | Physical |
| — | 36 | Sandstorm | Rock | Physical |
| 33 | 40 | Slam | Normal | Physical |
“Start” means it knows the move from level 1; a dash means it doesn’t learn the move by levelling up in that game.
Move Tutor Crystal
None.
TMs & HMs Gold, Silver & Crystal
- TM02Headbutt
- TM03Curse
- TM05Roar
- TM06Toxic
- TM08Rock Smash
- TM10Hidden Power
- TM11Sunny Day
- TM13Snore
- TM17Protect
- TM20Endure
- TM21Frustration
- TM23Iron Tail
- TM26Earthquake
- TM27Return
- TM28Dig
- TM31Mud-Slap
- TM32Double Team
- TM34Swagger
- TM35Sleep Talk
- TM37Sandstorm
- TM44Rest
- TM45Attract
- HM04Strength
TMs & HMs Red, Blue & Yellow
- TM06Toxic
- TM08Body Slam
- TM09Take Down
- TM10Double-Edge
- TM20Rage
- TM26Earthquake
- TM27Fissure
- TM28Dig
- TM31Mimic
- TM32Double Team
- TM34Bide
- TM36Self Destruct
- TM40Skull Bash
- TM44Rest
- TM47Explosion
- TM48Rock Slide
- TM50Substitute
- HM04Strength
Breeding Gold, Silver & Crystal
| Egg groups | Mineral Pokémon group 5 |
|---|
Compatible Pokémon
Egg moves
| Move | How to pass it down |
|---|---|
| Flail | Mate with a male Sudowoodo. |
| Rock Slide | Mate with a male Sudowoodo. |
Stats
| Stat | Base | Range at Lv. 100 | G/S/C rank | R/B/Y rank |
|---|---|---|---|---|
| HP | 35 | 243-273 | 41/4513.57% | 38/4214.72% |
| Attack | 45 | 158-188 | 39/4915.87% | 37/4514.72% |
| Defense | 160 | 388-418 | 4/5599.87% | 2/4499.97% |
| Speed | 70 | 208-238 | 23/4755.96% | 22/4250.00% |
| Special Attack G/S/C | 30 | 128-158 | 42/468.88% | — |
| Special Defense G/S/C | 45 | 158-188 | 34/4118.41% | — |
| Special R/B/Y | 30 | 128-158 | — | 27/298.08% |
| Total | 385 G/S/C 340 R/B/Y |
1283-1463 1125-1275 |
42/8740.14% | 31/6548.01% |
Ranges are the lowest and highest the stat can be at level 100. Ranks compare the base stat with every other Pokémon in those games (1 is the highest), with its percentile underneath.
Restored from Gengar’s Online Pokédex v4.2, one of the first Pokédexes on the web, created by Curtis Alumbaugh (Gengar) with Ian Alumbaugh (Haunter) and kept by Pokémon Dungeon. How to read this page · Red, Blue & Yellow moves · The Library