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.
As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid.
It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.
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 →Solar Beam 4x182-216%KO Flash Cannon 2x66-78% Metal Claw 2x30-36% | ||
 Palpitoad WaterGround | D | |
Available Moves Moves
Damage vs Onix View Palpitoad builds →Bubble Beam 4x182-216%KO Mud Shot 2x80-96% | ||
 Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Onix View Lombre builds →Solar Beam 4x306-360%KO Water Gun 4x112-132%KO Mega Drain 4x112-132%KO Absorb 4x60-72% | ||
 Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Onix View Nuzleaf builds →Solar Beam 4x306-360%KO Razor Leaf 4x70-84% Mega Drain 4x112-132%KO Absorb 4x60-72% | ||
 Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Onix View Pumpkaboo builds →Solar Beam 4x254-300%KO Razor Leaf 4x70-84% Bullet Seed 4x40-48% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x166-197%KO Flash Cannon 2x57-67% Metal Claw 2x26-31% | ||
Palpitoad WaterGround | D | |
Available Moves Moves
Damage vs Onix View Palpitoad builds →Bubble Beam 4x176-207%KO Mud Shot 2x74-88% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Onix View Lombre builds →Solar Beam 4x290-341%KO Bubble Beam 4x166-197%KO Mud Shot 2x47-55% Water Gun 4x105-124%KO | ||
Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Onix View Nuzleaf builds →Solar Beam 4x290-341%KO Razor Leaf 4x69-83% Mega Drain 4x105-124%KO Absorb 4x60-72% | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Onix View Pumpkaboo builds →Solar Beam 4x236-279%KO Razor Leaf 4x60-72% Bullet Seed 4x34-41% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x175-206%KO Flash Cannon 2x59-70% Iron Head 2x34-42% Metal Claw 2x23-28% | ||
Palpitoad WaterGround | D | |
Available Moves Moves
Damage vs Onix View Palpitoad builds →Bubble Beam 4x175-206%KO Mud Shot 2x75-89% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Onix View Lombre builds →Solar Beam 4x294-347%KO Bubble Beam 4x159-188%KO Mud Shot 2x47-56% Water Gun 4x103-122%KO | ||
Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Onix View Nuzleaf builds →Solar Beam 4x294-347%KO Razor Leaf 4x63-75% Mega Drain 4x103-122%KO Absorb 4x55-66% | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Onix View Pumpkaboo builds →Solar Beam 4x239-281%KO Razor Leaf 4x63-75% Bullet Seed 4x31-38% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x173-205%KO Flash Cannon 2x59-70% Iron Head 2x37-44% Revenge 2x18-22% | ||
 Cramorant Water | C | |
Available Moves Moves
Damage vs Onix View Cramorant builds →Dive 4x105-124%KO Steel Wing 2x30-37% Water Gun 4x137-161%KO Whirlpool 4x117-139%KO | ||
 Maractus Grass | C | |
Available Moves Moves
Damage vs Onix View Maractus builds →Solar Beam 4x466-549%KO Petal Blizzard 4x117-139%KO Giga Drain 4x298-351%KO Mega Drain 4x161-190%KO | ||
 Eldegoss Grass | C | |
Available Moves Moves
Damage vs Onix View Eldegoss builds →Solar Beam 4x373-439%KO Leaf Tornado 4x205-241%KO Magical Leaf 4x193-227%KO Razor Leaf 4x49-59% | ||
 Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Onix View Quagsire builds →Aqua Tail 4x111-132%KO Muddy Water 4x241-285%KO Dig 2x52-62% Mud Shot 2x74-88% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x178-209%KO Flash Cannon 2x62-73% Iron Head 2x35-42% Revenge 2x17-21% | ||
Cramorant Water | C | |
Available Moves Moves
Damage vs Onix View Cramorant builds →Dive 4x100-119%KO Steel Wing 2x29-35% Water Gun 4x142-167%KO Whirlpool 4x124-147%KO | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Onix View Maractus builds →Solar Beam 4x480-565%KO Petal Blizzard 4x119-140%KO Giga Drain 4x302-356%KO Mega Drain 4x165-195%KO | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Onix View Eldegoss builds →Solar Beam 4x379-447%KO Leaf Tornado 4x213-251%KO Magical Leaf 4x195-230%KO Razor Leaf 4x52-63% | ||
Quagsire WaterGround | C | |
Available Moves Moves
Damage vs Onix View Quagsire builds →Aqua Tail 4x112-133%KO Muddy Water 4x249-293%KO Dig 2x50-59% Mud Shot 2x77-91% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x168-198%KO Flash Cannon 2x56-67% Iron Head 2x35-41% Revenge 2x18-21% | ||
 Seismitoad WaterGround | C | |
Available Moves Moves
Damage vs Onix View Seismitoad builds →Dig 2x54-64% Drain Punch 2x34-40% Brick Break 2x34-40% Bubble Beam 4x211-249%KO | ||
Cramorant Water | C | |
Available Moves Moves
Damage vs Onix View Cramorant builds →Dive 4x97-115%KO Steel Wing 2x29-34% Water Gun 4x135-160%KO Whirlpool 4x119-140%KO | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Onix View Maractus builds →Solar Beam 4x466-549%KO Petal Blizzard 4x114-134%KO Giga Drain 4x293-345%KO Mega Drain 4x163-191%KO | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Onix View Eldegoss builds →Solar Beam 4x368-434%KO Leaf Tornado 4x205-243%KO Magical Leaf 4x189-223%KO Razor Leaf 4x48-57% | ||
 Dhelmise GhostGrass | B | |
Available Moves Moves
Damage vs Onix View Dhelmise builds →Solar Beam 4x390-459%KO Giga Drain 4x249-294%KO Brick Break 2x43-51% Bulldoze 2x36-43% | ||
 Gastrodon WaterGround | B | |
Available Moves Moves
Damage vs Onix View Gastrodon builds →Muddy Water 4x312-367%KO Earth Power 2x156-184%KO Dive 4x98-116%KO Dig 2x49-58% | ||
Ferroseed GrassSteel | C | |
Available Moves Moves
Damage vs Onix View Ferroseed builds →Solar Beam 4x166-196%KO Flash Cannon 2x57-67% Iron Head 2x34-40% Revenge 2x17-20% | ||
Seismitoad WaterGround | C | |
Available Moves Moves
Damage vs Onix View Seismitoad builds →Dig 2x54-64% Dive 4x109-129%KO Drain Punch 2x35-41% Brick Break 2x35-41% | ||
 Mantine Water | C | |
Available Moves Moves
Damage vs Onix View Mantine builds →Dive 4x62-73% Bubble Beam 4x202-239%KO Water Pulse 4x187-220%KO Bulldoze 2x15-18% | ||
 Ferrothorn GrassSteel | A | |
Available Moves Moves
Damage vs Onix View Ferrothorn builds →Power Whip 4x163-192%KO Solar Beam 4x278-328%KO Flash Cannon 2x93-110%KO Iron Head 2x55-65% | ||
 Golisopod BugWater | B | |
Available Moves Moves
Damage vs Onix View Golisopod builds →Liquidation 4x144-170%KO Dive 4x134-158%KO Razor Shell 4x129-153%KO Brick Break 2x42-51% | ||
Dhelmise GhostGrass | B | |
Available Moves Moves
Damage vs Onix View Dhelmise builds →Solar Beam 4x399-470%KO Giga Drain 4x255-300%KO Brick Break 2x44-53% Bulldoze 2x37-43% | ||
Seismitoad WaterGround | C | |
Available Moves Moves
Damage vs Onix View Seismitoad builds →Dig 2x55-65% Dive 4x110-130%KO Drain Punch 2x35-42% Brick Break 2x35-42% | ||
 Abomasnow GrassIce | C | |
Available Moves Moves
Damage vs Onix View Abomasnow builds →Wood Hammer 4x158-187%KO Solar Beam 4x423-498%KO Ice Punch 2x50-59% Brick Break 2x33-40% | ||
In Sword & Shield, Excadrill threatens a KO with Earthquake (107-127%). Rillaboom's Wood Hammer also KOs at 266-313%.
 Heatran FireSteel | S | |
Recommended Build AbilityFlashfire ItemLeftovers NatureTimid Moves View Heatran builds →
| ||
 Excadrill GroundSteel | A | |
Recommended Build AbilityMold Breaker ItemLeftovers NatureJolly Moves
Damage vs Onix View Excadrill builds →Earthquake 2x107-127%KO Rapid Spin9-10% | ||
 Rillaboom Grass | A | |
Recommended Build AbilityGrassy Surge ItemAssault Vest NatureAdamant Moves
Damage vs Onix View Rillaboom builds →U Turn26-31% Wood Hammer 4x266-313%KO | ||
 Weavile DarkIce | A | |
Recommended Build AbilityPressure ItemHeavy-Duty Boots NatureJolly Moves
Damage vs Onix View Weavile builds →Knock Off32-37% Ice Shard 2x40-47% | ||
 Conkeldurr Fighting | A | |
Recommended Build AbilityGuts ItemFlame Orb NatureAdamant Moves
Damage vs Onix View Conkeldurr builds →Mach Punch 2x49-58% Drain Punch 2x91-107%KO Knock Off26-31% Facade14-17% | ||
Sword & Shield 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 61 breeding partners from the Mineral egg group. Pass egg moves like Block, Defense Curl, Dragon Tail and 4 more to offspring.
Sword & Shield Onix Best Moveset
Onix doesn't rely on pure speed. Leftovers gives it passive recovery each turn to stay healthy, and Naive nature still pushes offense. Earthquake and the remaining moves keep the pressure on while max Sp. Atk and Speed EVs balance power and survivability.
Best Build
Onix best EVs are Sp. Atk and Speed
Special Sweeper Moveset
- Rest
- Ancient Power
- Earthquake
- Flash Cannon
Recommended Teammates
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
Sword & Shield Onix Locations
Onix is available from early-game routes onward at high spawn rates. 14 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.
Best Locations to Catch Onix in Sword & Shield
14 walking encounters at Lv. 8-35 for Onix across Shield and Sword. A few locations are version-exclusive, so your copy of the game affects what's available.
Onix Guide
At 385 BST, Onix is firmly in pre-evolution territory. Evolve it into Steelix before bringing it to any serious fight.
In Sword & Shield, 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 a physical attacker with 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 Sword & Shield, 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