Onix
Diamond

When it travels underground, it causes rumbling and tremors. It can move at 50 mph.

Pearl

It squirms through the ground using its long and rugged body. It always eats while burrowing.

Platinum

It burrows through the ground at a speed of 50 mph while feeding on large boulders.

Heartgold

It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.

Soulsilver

It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.

Evolution Chain

onix
Onix
🔄
Trade
+
metal-coat metal coat
steelix
Steelix

Pokédex & Training Data

Classification Rock Snake Pokémon
Height 8.8 m (28'10")
Weight 210.0 kg (463.0 lbs)
Abilities
EV Yield +1 defense
Catch Rate 45
Base Friendship 70
Growth Rate medium
Gender Ratio
♂ ♀
Egg Groups Mineral

Pokédex Numbers

Kanto (R/B/Y) #095
Johto (G/S/C) #062
Sinnoh (D/P) #034
Sinnoh (Plat.) #034
Johto (HG/SS) #062
Unova (B2/W2) #071
Kalos (Coastal) #053
Galar (Sw/Sh) #178
Hisui #118
National #095

Held Items

None in this generation.

Game Locations

Iron Island 1f
Iron Island B1f Left
Iron Island B1f Right
Iron Island B2f Left
Iron Island B2f Right
Iron Island B3f
Johto Route 47 Inside Cave
Johto Safari Zone Zone Wasteland
Kanto Victory Road 1 1f
Kanto Victory Road 1 2f
Kanto Victory Road 1 3f
Mt Silver 1f
Mt Silver Mountainside
Oreburgh Mine 1f
Oreburgh Mine B1f
Rock Tunnel B1f
Sinnoh Victory Road 1f
Sinnoh Victory Road 2f
Sinnoh Victory Road B1f
Sinnoh Victory Road Inside
Sinnoh Victory Road Inside Exit
Snowpoint Temple 1f
Snowpoint Temple B1f
Snowpoint Temple B2f
Snowpoint Temple B3f
Stark Mountain Entrance
Stark Mountain Inside
Union Cave 1f
Union Cave B1f
Union Cave B2f
Wayward Cave 1f
Wayward Cave B1f

Learned Moves

Level Up Moves

Diamond/Pearl
Lvl Name Class Power Acc. PP Effect
1 Bind
15 85% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Harden
— — 30 Raises the user’s Defense by one stage.
1 Mud Sport
— — 15 Halves all Electric-type damage.
6 Screech
— 85% 40 Lowers the target’s Defense by two stages.
9 Rock Throw
50 90% 15 Inflicts regular damage with no additional effect.
14 Rage
20 100% 20 If the user is hit after using this move, its Attack rises by one stage.
17 Rock Tomb
60 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
22 Sandstorm
— — 10 Changes the weather to a sandstorm for five turns.
25 Slam
80 75% 20 Inflicts regular damage with no additional effect.
30 Rock Polish
— — 20 Raises the user’s Speed by two stages.
33 Dragon Breath
60 100% 20 Has a 30% chance to paralyze the target.
38 Iron Tail
100 75% 15 Has a 30% chance to lower the target’s Defense by one stage.
41 Sand Tomb
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
46 Double Edge
120 100% 15 User receives 1/3 the damage inflicted in recoil.
49 Stone Edge
100 80% 5 Has an increased chance for a critical hit.
Platinum
Lvl Name Class Power Acc. PP Effect
1 Bind
15 85% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Harden
— — 30 Raises the user’s Defense by one stage.
1 Mud Sport
— — 15 Halves all Electric-type damage.
6 Screech
— 85% 40 Lowers the target’s Defense by two stages.
9 Rock Throw
50 90% 15 Inflicts regular damage with no additional effect.
14 Rage
20 100% 20 If the user is hit after using this move, its Attack rises by one stage.
17 Rock Tomb
60 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
22 Sandstorm
— — 10 Changes the weather to a sandstorm for five turns.
25 Slam
80 75% 20 Inflicts regular damage with no additional effect.
30 Rock Polish
— — 20 Raises the user’s Speed by two stages.
33 Dragon Breath
60 100% 20 Has a 30% chance to paralyze the target.
38 Curse
— — 10 Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.
41 Iron Tail
100 75% 15 Has a 30% chance to lower the target’s Defense by one stage.
46 Sand Tomb
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
49 Double Edge
120 100% 15 User receives 1/3 the damage inflicted in recoil.
54 Stone Edge
100 80% 5 Has an increased chance for a critical hit.
HeartGold/SoulSilver
Lvl Name Class Power Acc. PP Effect
1 Bind
15 85% 20 Prevents the target from fleeing and inflicts damage for 2-5 turns.
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Harden
— — 30 Raises the user’s Defense by one stage.
1 Mud Sport
— — 15 Halves all Electric-type damage.
6 Screech
— 85% 40 Lowers the target’s Defense by two stages.
9 Rock Throw
50 90% 15 Inflicts regular damage with no additional effect.
14 Rage
20 100% 20 If the user is hit after using this move, its Attack rises by one stage.
17 Rock Tomb
60 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
22 Sandstorm
— — 10 Changes the weather to a sandstorm for five turns.
25 Slam
80 75% 20 Inflicts regular damage with no additional effect.
30 Rock Polish
— — 20 Raises the user’s Speed by two stages.
33 Dragon Breath
60 100% 20 Has a 30% chance to paralyze the target.
38 Curse
— — 10 Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.
41 Iron Tail
100 75% 15 Has a 30% chance to lower the target’s Defense by one stage.
46 Sand Tomb
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
49 Double Edge
120 100% 15 User receives 1/3 the damage inflicted in recoil.
54 Stone Edge
100 80% 5 Has an increased chance for a critical hit.

TM/HM Moves

Diamond/PearlPlatinumHeartGold/SoulSilver
Name Class Power Acc. PP Effect
HM04 Strength
80 100% 15 Inflicts regular damage with no additional effect.
HM06 Rock Smash
40 100% 15 Has a 50% chance to lower the target’s Defense by one stage.
HM08 Rock Climb
90 85% 20 Has a 20% chance to confuse the target.
TM05 Roar
— — 20 Immediately ends wild battles. Forces trainers to switch Pokémon.
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM10 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
TM11 Sunny Day
— — 5 Changes the weather to sunny for five turns.
TM12 Taunt
— 100% 20 For the next few turns, the target can only use damaging moves.
TM17 Protect
— — 10 Prevents any moves from hitting the user this turn.
TM21 Frustration
— 100% 20 Power increases as happiness decreases, up to a maximum of 102.
TM23 Iron Tail
100 75% 15 Has a 30% chance to lower the target’s Defense by one stage.
TM26 Earthquake
100 100% 10 Inflicts regular damage and can hit Dig users.
TM27 Return
— 100% 20 Power increases with happiness, up to a maximum of 102.
TM28 Dig
80 100% 10 User digs underground, dodging all attacks, and hits next turn.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM37 Sandstorm
— — 10 Changes the weather to a sandstorm for five turns.
TM39 Rock Tomb
60 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
TM41 Torment
— 100% 15 Prevents the target from using the same move twice in a row.
TM42 Facade
70 100% 20 Power doubles if user is burned, paralyzed, or poisoned.
TM43 Secret Power
70 100% 20 Has a 30% chance to inflict a status effect which depends upon the terrain.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM45 Attract
— 100% 15 Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM58 Endure
— — 10 Prevents the user’s HP from lowering below 1 this turn.
TM59 Dragon Pulse
85 100% 10 Inflicts regular damage with no additional effect.
TM64 Explosion
250 100% 5 User faints.
TM66 Payback
50 100% 10 Power is doubled if the target has already moved this turn.
TM69 Rock Polish
— — 20 Raises the user’s Speed by two stages.
TM71 Stone Edge
100 80% 5 Has an increased chance for a critical hit.
TM74 Gyro Ball
— 100% 5 Power raises when the user has lower Speed, up to a maximum of 150.
TM76 Stealth Rock
— — 20 Causes damage when opposing Pokémon switch in.
TM77 Psych Up
— — 10 Discards the user’s stat changes and copies the target’s.
TM78 Captivate
— 100% 20 Lowers the target’s Special Attack by two stages if it’s the opposite gender.
TM80 Rock Slide
75 90% 10 Has a 30% chance to make the target flinch.
TM82 Sleep Talk
— — 10 Randomly uses one of the user’s other three moves. Only works if the user is sleeping.
TM83 Natural Gift
— 100% 15 Power and type depend on the held berry.
TM87 Swagger
— 85% 15 Raises the target’s Attack by two stages and confuses the target.
TM90 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.
TM91 Flash Cannon
80 100% 10 Has a 10% chance to lower the target’s Special Defense by one stage.

Tutor Moves

Platinum
Name Class Power Acc. PP Effect
Ancient Power
60 100% 5 Has a 10% chance to raise all of the user’s stats by one stage.
Earth Power
90 100% 10 Has a 10% chance to lower the target’s Special Defense by one stage.
Iron Head
80 100% 15 Has a 30% chance to make the target flinch.
Mud Slap
20 100% 10 Has a 100% chance to lower the target’s accuracy by one stage.
Rollout
30 90% 20 Power doubles every turn this move is used in succession after the first, resetting after five turns.
Snore
50 100% 15 Has a 30% chance to make the target flinch. Only works if the user is sleeping.
Twister
40 100% 20 Has a 20% chance to make the target flinch.
HeartGold/SoulSilver
Name Class Power Acc. PP Effect
Ancient Power
60 100% 5 Has a 10% chance to raise all of the user’s stats by one stage.
Block
— — 5 Prevents the target from leaving battle.
Earth Power
90 100% 10 Has a 10% chance to lower the target’s Special Defense by one stage.
Headbutt
70 100% 15 Has a 30% chance to make the target flinch.
Iron Head
80 100% 15 Has a 30% chance to make the target flinch.
Mud Slap
20 100% 10 Has a 100% chance to lower the target’s accuracy by one stage.
Rollout
30 90% 20 Power doubles every turn this move is used in succession after the first, resetting after five turns.
Snore
50 100% 15 Has a 30% chance to make the target flinch. Only works if the user is sleeping.
Twister
40 100% 20 Has a 20% chance to make the target flinch.

Egg Moves

Diamond/PearlPlatinumHeartGold/SoulSilver
Name Class Power Acc. PP Effect
Block
— — 5 Prevents the target from leaving battle.
Defense Curl
— — 40 Raises user’s Defense by one stage.
Explosion
250 100% 5 User faints.
Flail
— 100% 15 Inflicts more damage when the user has less HP remaining, with a maximum of 200 power.
Rock Blast
25 90% 10 Hits 2-5 times in one turn.
Rock Slide
75 90% 10 Has a 30% chance to make the target flinch.
Rollout
30 90% 20 Power doubles every turn this move is used in succession after the first, resetting after five turns.

Base Stats

Hp 35
Attack 45
Defense 160
Sp. Atk 30
Sp. Def 45
Speed 70
Total 385

Type Defenses

(vs. Gen 6+ rules)

0.5x
0.5x
4x
4x
0x
2x
2x
0.25x
2x
0.5x
0.5x
2x