Stats & Training
The stat bars tell the story: Defense carries everything and Sp. Atk's dead weight. But this Rock Snake Pokemon still yields 1 Defense EV per fight on a medium-fast 1M XP curve.
Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett.
It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.
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 |
 Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Metal Claw 2x30-36% Rock Smash 2x16-20% | ||
 Pansage Grass | D | |
Available Moves Moves
Damage vs Onix View Pansage builds →Vine Whip 4x50-60% Rock Smash 2x16-20% | ||
 Ducklett Water | D | |
Available Moves Moves
Damage vs Onix View Ducklett builds →Bubble Beam 4x142-168%KO Water Pulse 4x132-156%KO Water Gun 4x90-108%KO | ||
 Wingull Water | D | |
Available Moves Moves
Damage vs Onix View Wingull builds →Water Pulse 4x152-180%KO Water Gun 4x112-132%KO | ||
 Hoppip Grass | D | |
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Mirror Shot 2x47-57% Metal Claw 2x23-28% Rock Smash 2x14-16% | ||
Pansage Grass | D | |
Available Moves Moves
Damage vs Onix View Pansage builds →Seed Bomb 4x76-89% Dig 2x24-30% Low Sweep 2x20-24% Vine Whip 4x47-57% | ||
 Chespin Grass | D | |
Obtain MethodAquacorde Town Gift Available Moves Moves
Damage vs Onix View Chespin builds →Seed Bomb 4x82-97% Dig 2x27-32% Low Sweep 2x23-27% Bulldoze 2x20-24% | ||
Ducklett Water | D | |
Available Moves Moves
Damage vs Onix View Ducklett builds →Surf 4x185-219%KO Bubble Beam 4x138-162%KO Water Pulse 4x123-146%KO Water Gun 4x89-105%KO | ||
Wingull Water | D | |
Available Moves Moves
Damage vs Onix View Wingull builds →Water Pulse 4x145-170%KO Water Gun 4x103-122%KO | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Mirror Shot 2x47-57% Metal Claw 2x23-28% Rock Smash 2x14-16% | ||
 Exeggcute GrassPsychic | D | |
Pansage Grass | D | |
Available Moves Moves
Damage vs Onix View Pansage builds →Seed Bomb 4x76-89% Dig 2x24-30% Low Sweep 2x20-24% Vine Whip 4x47-57% | ||
Chespin Grass | D | |
Obtain MethodAquacorde Town Gift Available Moves Moves
Damage vs Onix View Chespin builds →Seed Bomb 4x82-97% Dig 2x27-32% Low Sweep 2x23-27% Bulldoze 2x20-24% | ||
Ducklett Water | D | |
Available Moves Moves
Damage vs Onix View Ducklett builds →Surf 4x185-219%KO Bubble Beam 4x138-162%KO Water Pulse 4x123-146%KO Water Gun 4x89-105%KO | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Mirror Shot 2x47-57% Metal Claw 2x23-28% Rock Smash 2x14-16% | ||
Exeggcute GrassPsychic | D | |
Pansage Grass | D | |
Available Moves Moves
Damage vs Onix View Pansage builds →Seed Bomb 4x76-89% Dig 2x24-30% Low Sweep 2x20-24% Vine Whip 4x47-57% | ||
Chespin Grass | D | |
Obtain MethodAquacorde Town Gift Available Moves Moves
Damage vs Onix View Chespin builds →Seed Bomb 4x82-97% Dig 2x27-32% Low Sweep 2x23-27% Bulldoze 2x20-24% | ||
Ducklett Water | D | |
Available Moves Moves
Damage vs Onix View Ducklett builds →Surf 4x185-219%KO Bubble Beam 4x138-162%KO Water Pulse 4x123-146%KO Water Gun 4x89-105%KO | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Mirror Shot 2x50-59% Metal Claw 2x23-28% Rock Smash 2x13-16% | ||
 Carnivine Grass | C | |
Available Moves Moves
Damage vs Onix View Carnivine builds →Leaf Tornado 4x230-272%KO Vine Whip 4x71-84% | ||
 Quagsire WaterGround | C | |
Obtain MethodRoute 14 Surfing Available Moves Moves
Damage vs Onix View Quagsire builds →Earthquake 2x62-73% Surf 4x249-293%KO Dig 2x50-59% Mud Bomb 2x92-108%KO | ||
 Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Onix View Pumpkaboo builds →Razor Leaf 4x59-70% Rock Smash 2x15-19% Bullet Seed 4x35-42% | ||
Exeggcute GrassPsychic | D | |
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Mirror Shot 2x48-57% Metal Claw 2x24-30% Rock Smash 2x12-16% | ||
 Abomasnow GrassIce | C | |
Available Moves Moves
Damage vs Onix View Abomasnow builds →Wood Hammer 4x163-193%KO Ice Punch 2x50-60% Bulldoze 2x28-33% Frost Breath 2x110-130%KO | ||
Carnivine Grass | C | |
Available Moves Moves
Damage vs Onix View Carnivine builds →Leaf Tornado 4x232-273%KO Vine Whip 4x68-80% | ||
Quagsire WaterGround | C | |
Obtain MethodRoute 14 Surfing Available Moves Moves
Damage vs Onix View Quagsire builds →Earthquake 2x64-77% Surf 4x249-293%KO Dig 2x50-60% Mud Bomb 2x90-107%KO | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Onix View Pumpkaboo builds →Razor Leaf 4x62-73% Rock Smash 2x14-18% Bullet Seed 4x33-40% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Iron Head 2x35-41% Mirror Shot 2x48-57% Metal Claw 2x23-27% Rock Smash 2x12-15% | ||
Abomasnow GrassIce | C | |
Available Moves Moves
Damage vs Onix View Abomasnow builds →Wood Hammer 4x157-185%KO Focus Blast 2x142-167%KO Blizzard 2x196-232%KO Ice Beam 2x162-191%KO | ||
 Trevenant GhostGrass | C | |
Available Moves Moves
Damage vs Onix View Trevenant builds →Wood Hammer 4x185-218%KO Focus Blast 2x109-129%KO Dig 2x41-49% Bulldoze 2x32-38% | ||
Carnivine Grass | C | |
Available Moves Moves
Damage vs Onix View Carnivine builds →Power Whip 4x171-202%KO Leaf Tornado 4x232-273%KO Vine Whip 4x69-82% | ||
 Lileep RockGrass | D | |
Obtain MethodAmbrette Town Gift | ||
In X & Y, Serperior can KO Onix with Leaf Storm (498-586%). Garchomp threatens a KO with Earthquake (104-122%). Weavile deals 59-70% with Ice Shard.
 Serperior Grass | A | |
Recommended Build AbilityContrary ItemLeftovers NatureTimid Moves
Damage vs Onix View Serperior builds →Leaf Storm 4x498-586%KO | ||
 Garchomp DragonGround | A | |
Recommended Build AbilityRough Skin ItemRocky Helmet NatureJolly Moves
Damage vs Onix View Garchomp builds →Earthquake 2x104-122%KO | ||
 Weavile DarkIce | A | |
Recommended Build AbilityPressure ItemChoice Band NatureJolly Moves
Damage vs Onix View Weavile builds →Knock Off47-56% Ice Shard 2x59-70% Pursuit29-35% | ||
 Heatran FireSteel | A | |
Recommended Build AbilityFlashfire ItemLeftovers NatureCalm Moves View Heatran builds →
| ||
 Hitmontop Fighting | B | |
Recommended Build AbilityIntimidate ItemEjectbutton NatureAdamant Moves
Damage vs Onix View Hitmontop builds →Close Combat 2x110-129%KO Feint5-6% | ||
X & Y Evolution
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 56 breeding partners from the Mineral egg group. Pass egg moves like Block, Defense Curl, Flail and 6 more to offspring.
X & Y Onix Best Moveset
Best Build
No build content available for this Pokemon in Gen 6.
Try selecting a different game/generation filter, or check back later.
Moves
The natural movepool does the job, but Block and Defense Curl from the egg pool give Onix something extra.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
X & Y Onix Locations
high spawn rates in early-game areas across 5 locations. Onix's one of the easier catches on the list. Two different catch methods are in play here. Knock it out fast and save your time for harder targets.
Best Locations to Catch Onix in X & Y
5 spots to find Onix at Lv. 13-17 via rock smash and walking. Not all of them exist in both X and Y versions, so filter by your copy below.
Onix Guide
At 385 BST, Onix is firmly in pre-evolution territory. Evolve it into Steelix before bringing it to any serious fight.
In X & Y, watch for Starmie (Water), Exeggutor (Grass), and Cloyster (Ice) when using Onix. They all hit it super-effectively with STAB. Starmie is the most dangerous since Water moves deal 4x damage. Fighting, Ground, and Steel-type attackers are also a problem. With 6 weakness types, most competitive teams carry at least one counter.
Rock Head protects against recoil damage. That's the one you want on Onix. Weak Armor is the hidden ability. Niche, but it has its uses. Sturdy works too if your team needs something different.
Onix is leaning toward the physical side (base 45 Attack). Enough bulk to take a hit or two, too. Speed tells the real story. Base 70 Speed is workable. Faster than some, slower than many.
In X & Y, 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.
Game Availability
Present since Red & Blue, Onix appears in 21 games spanning 10 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 1Y
Yellow - Gen 1RBDebut
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves