Is Onix Good in Platinum Playthrough?
Oreburgh Mine from level 6. AbilityRock Head removes recoil damage. Onix handles Roark and Volkner through Ground moves. Steelix through trade with Metal Coat is the real form, but Steel typing struggles against Flint's all-Fire E4 in Platinum.
Steelix has the type edge here and should clean up Roark's team.
Steelix trades roughly evenly with Gardenia's team.
Fantina's typing presses Steelix's defenses.
Steelix has the type edge here and should clean up Maylene's team.
Steelix trades roughly evenly with Crasher Wake's team.
Steelix has the type edge here and should clean up Byron's team.
Steelix has the type edge here and should clean up Candice's team.
Steelix has the type edge here and should clean up Volkner's team.
Steelix trades roughly evenly with Aaron's team.
Steelix trades roughly evenly with Bertha's team.
Steelix trades roughly evenly with Flint's team.
Steelix trades roughly evenly with Lucian's team.
Steelix resists most of Jupiter's coverage and hits back hard.
Steelix has the type edge here and should clean up Mars's team.
Steelix has the type edge here and should clean up Saturn's team.
Steelix trades roughly evenly with Cynthia's team.
Catchable
Catch Onix in Oreburgh Mine (walking, Lv 6-8, uncommon).
Recommended Moves
- After Gardenia
- TM26GroundEarthquakePower 150Accuracy 100%PP 10Wayward Cave (secret entrance under bike path)
- After Fantina
- TM28GroundDigPower 120Accuracy 100%PP 10Maniac Tunnel
- TM64NormalExplosionPower 250Accuracy 100%PP 5Won at the Veilstone Game Corner after playing ten bonus rounds in a row on the slots
- After Maylene
- TM06PoisonToxicPower —Accuracy 85%PP 10Route 212
- After Candice
- TM80RockRock SlidePower 113Accuracy 90%PP 10Mt. Coronet
- LV 49NormalDouble-EdgePower 120Accuracy 100%PP 15
- LV 54RockStone EdgePower 150Accuracy 80%PP 5
- Post-Game
- TUTORGroundEarth PowerPower 135Accuracy 100%PP 10Survival Area
- TUTORRockAncient PowerPower 90Accuracy 100%PP 5Survival Area
- TUTORSteelIron HeadPower 80Accuracy 100%PP 15Survival Area
- TM42NormalFacadePower 70Accuracy 100%PP 20Survival Area
How to Get Onix in Platinum
Onix snakes through several caves, fourteen encounters over four areas at levels 6 to 50. It spans the whole game underground, so almost any cave you explore has a chance at this rock serpent.
4 locations to catch Onix
Encountered via tall grass encounters
Badge 1
Badge 2
Badge 3
Badge 4
Badge 5
Badge 6
Badge 7
Badge 8Where To Catch Onix in Pt
The line opens with Onix at Lv. 6-50 via walking encounters. 2 catchable stages total, with locations listed for each one below.
- Step 1Onix ✓Oreburgh Mine - B1FLv.6-8CaveRate 10%Oreburgh Mine - B2FLv.7-9CaveRate 10%Wayward Cave - 1FLv.18-20CaveRate 15%Wayward Cave - B1FLv.18-20CaveRate 15%Iron Island - B2F Left CaveLv.32GrassRate 20%Iron Island - B2F Right CaveLv.32GrassRate 20%Victory Road - 1FLv.41-42CaveRate 20%Iron Island - 1FLv.31-33GrassRate 10%Iron Island - B1F Left CaveLv.31-33GrassRate 10%Iron Island - B1F Right CaveLv.31-33GrassRate 10%Victory Road - B1FLv.42CaveRate 10%Victory Road - 2FLv.42CaveRate 5%Victory Road - Nat Dex AreaLv.48-50CaveRate 20%Victory Road - Nat Dex Exit AreaLv.48-50CaveRate 20%
- Step 2Catch or Evolve into SteelixVictory Road - 2FLv.42-44CaveRate 40%Iron Island - B3FLv.32-35GrassRate 30%Iron Island - B2F Left CaveLv.33-35GrassRate 10%Iron Island - B2F Right CaveLv.33-35GrassRate 10%or evolve from Onix (Step 1)
Want the exact numbers? Work out your catch odds in Platinum for Onix.
How to Get Shiny Onix in Platinum
Onix tunnels through Iron Island and Sinnoh's caves, beyond the Radar's help, so breed one with a foreign Ditto for its shiny. Compare Shiny Onix odds across every game
Platinum Shiny Onix Calculator
2 MethodsThe best route is Masuda Method, about 1 in 1,639 on each try.
Masuda Method: Breed with a parent from a different-language game. Works on any breedable line.
Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.
How many you have done, or plan to do.
| Chance | Encounters | Time |
|---|---|---|
| 10%lucky few | 173-- | -- |
| 25%one in four | 472-- | -- |
| 50%coin flip | 1,136-- | -- |
| 90%very likely | 3,773-- | -- |
Time assumes -- at your pace and does not change your shiny odds.
How is this calculated?
Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.
chance after N tries = 1 − (1 − p)^N, where p = 1 / odds per try
Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.
The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.
These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.
Curious how fast a hunt could go? Work out your Platinum shiny odds for Onix.
Onix Weakness
Onix's Rock/Ground typing leaves it vulnerable to Water, Grass, Ice, Fighting, Ground, and Steel. Water and Grass hits land at 4x, so they're the biggest threat. It shrugs off Electric-type attacks completely. The Rock/Ground typing picks up 5 resistances to work with. Onix's physical bulk (base 160 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
| Damage | Types |
|---|---|
| 4x (Critical) | Water, Grass |
| 2x (Weak) | Ice, Fighting, Ground, Steel |
| 0.5x (Resist) | Normal, Fire, Flying, Rock |
| 0.25x (Resist) | Poison |
| 0x (Immune) | Electric |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
What is Onix Weak Against
FragileBest Pokemon Against Onix
 Torterra GrassGround | C | |
Obtain MethodEvolve Turtwig (Route 201 Gift) Available Moves Moves
Damage vs Onix View Torterra builds →Wood Hammer 4x180-213%KO Earthquake 2x76-90% Iron Tail 2x51-60% Rock Smash 2x21-25% | ||
 Exeggutor GrassPsychic | C | |
 Tangrowth Grass | C | |
Available Moves Moves
Damage vs Onix View Tangrowth builds →Solar Beam 4x495-584%KO Earthquake 2x47-56% Focus Blast 2x165-195%KO | ||
 Roserade GrassPoison | B | |
 Breloom GrassFighting | A | |
Available Moves Moves
Damage vs Onix View Breloom builds →Seed Bomb 4x144-169%KO Focus Punch 2x132-155%KO Iron Tail 2x58-69% | ||
 Shiftry GrassDark | C | |
Available Moves Moves
Damage vs Onix View Shiftry builds →Leaf Storm 4x491-578%KO Dig 2x38-45% Focus Blast 2x140-165%KO | ||
 Ludicolo WaterGrass | C | |
Available Moves Moves
Damage vs Onix View Ludicolo builds →Solar Beam 4x422-496%KO Surf 4x334-393%KO Focus Punch 2x54-64% Ice Beam 2x111-131%KO | ||
 Abomasnow GrassIce | C | |
Available Moves Moves
Damage vs Onix View Abomasnow builds →Wood Hammer 4x157-185%KO Focus Punch 2x66-78% Ice Beam 2x171-202%KO Water Pulse 4x145-171%KO | ||
 Cherrim Grass | C | |
 Cradily RockGrass | C | |
Obtain MethodEvolve Lileep (Oreburgh City Gift) Available Moves Moves
Damage vs Onix View Cradily builds →Solar Beam 4x389-458%KO Earthquake 2x40-47% Rock Smash 2x16-20% | ||
 Empoleon WaterSteel | B | |
Obtain MethodEvolve Piplup (Route 201 Gift) Available Moves Moves
Damage vs Onix View Empoleon builds →Surf 4x398-469%KO Flash Cannon 2x166-196%KO Ice Beam 2x133-156%KO Earthquake 2x41-49% | ||
 Carnivine Grass | C | |
 Heracross BugFighting | B | |
Available Moves Moves
Damage vs Onix View Heracross builds →Focus Punch 2x127-150%KO Earthquake 2x56-67% | ||
 Gallade PsychicFighting | B | |
Available Moves Moves
Damage vs Onix View Gallade builds →Focus Punch 2x127-150%KO Leaf Blade 4x102-120%KO Earthquake 2x56-67% | ||
Onix Evolutions
To get Steelix from Onix, you need a trade. The evolution method matters here. The evolved forms gain up to 125 total stats over Onix. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Onix easily with 29 breeding partners from the Mineral egg group. Pass egg moves like Block, Defense Curl, Explosion and 4 more to offspring.
Pt Onix Best Moveset
Rock/Ground typing blockss Electric attacks entirely and resists Normal and Poison, but 35 HP undermines the 160 Defense completely. The moveset barely threatens at 45 Attack. Steelix through trade is the real destination.
Best Build
Onix best EVs are Attack and Speed
Support Moveset
- Stealth Rock
- Earthquake
- Explosion
- Toxic
Recommended Teammates
Moves List
The natural movepool does the job, but Block and Defense Curl from the egg pool give Onix something extra.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
36 of 38 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
It burrows through the ground at a speed of 50 mph while feeding on large boulders.
Onix Platinum Guide
No. Onix only evolves into Steelix through a real trade. There is no in-game alternative in Platinum. The Metal Coat must be held during the trade. Bring one over from a sibling Gen 3 game if needed.
In Platinum, for a casual playthrough, Onix works as a placeholder. Rock/Ground coverage is useful early. The real payoff is Steelix. That's where the stats start mattering.
In Platinum, use Onix as a balanced. Physical side carries the damage. Speed is middling, Earthquake is the primary attack.
For Platinum, run Jolly on Onix. +Speed is what matters, and the -Sp. Atk cut doesn't hurt this set. Fits the balanced role.
Game Availability
Present since Red & Blue, Onix appears in 21 games spanning 9 generations. Gen 1 originals like Onix have the longest track record of availability in the series.
Click a game to view version-specific details
- Gen 1RBDebut
Red & Blue - Gen 1Y
Yellow - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG
FireRed & LeafGreen - Gen 4DP
Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7SM
Sun & Moon - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7Let's Go
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves
Explore
Where to go next after Onix.
Keep playing · PlatinumPlatinum Tier ListThe best Pokemon ranked tier by tierSee Platinum Tier List