Onix

RockGroundRock Head, Sturdy

Cliff Cave · Lv 42-45 Cliff Cave · Lv 42-45 Digletts Cave · Lv 65-66 Open in the guide Compare

In Mirror Gold: First found in Cliff Cave (Grass (Morning / Day), Lv 42-45), and in 4 more areas. Its type (Rock / Ground) is the same as in the official games. Base stats total 400, up from 385; 4 of the six changed, most of all HP (35 → 90). Abilities: it loses Weak Armor. 4 of its 21 level-up moves are new compared with Pokémon HeartGold & SoulSilver, including Gyro Ball and Stealth Rock.

Level-up moves 22

Lv	Move	Type	Cat	Pow	Acc	PP
1	Tackle Inflicts regular damage with no additional effect.	Normal	Phys	40	100	35
1	Harden Raises the user’s Defense by one stage.	Normal	Stat	—	—	30
1	Bind Prevents the target from fleeing and inflicts damage for 2-5 turns.	Normal	Phys	15	85	20
1	Rock Throw Inflicts regular damage with no additional effect.	Rock	Phys	50	90	15
1	Mud Sport Halves all Electric-type damage.	Ground	Stat	—	—	15
7	Rock Throw Inflicts regular damage with no additional effect.	Rock	Phys	50	90	15
10	Curse Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.	Ghost	Stat	—	—	10
10	Rock Tomb Has a chance to lower the target’s Speed by one stage.	Rock	Phys	60	95	15
13	Rock Polish Raises the user’s Speed by two stages.	Rock	Stat	—	—	20
13	Rage If the user is hit after using this move, its Attack rises by one stage.	Normal	Phys	20	100	20
18	Dragon Breath Has a chance to paralyze the target.	Dragon	Spec	60	100	20
20	Gyro Ball Power raises when the user has lower Speed, up to a maximum of 150.	Steel	Phys	—	100	5
24	Stealth Rock Causes damage when opposing Pokémon switch in.	Rock	Stat	—	—	20
26	Rock Slide Has a chance to make the target flinch.	Rock	Phys	75	90	10
27	Screech Lowers the target’s Defense by two stages.	Normal	Stat	—	85	40
32	Sand Tomb Prevents the target from fleeing and inflicts damage for 2-5 turns.	Ground	Phys	35	85	15
32	Slam Inflicts regular damage with no additional effect.	Normal	Phys	80	75	20
43	Dig User digs underground, dodging all attacks, and hits next turn.	Ground	Phys	80	100	10
44	Iron Tail Has a chance to lower the target’s Defense by one stage.	Steel	Phys	100	75	15
45	Sandstorm Changes the weather to a sandstorm for five turns.	Rock	Stat	—	—	10
49	Stone Edge Has an increased chance for a critical hit.	Rock	Phys	100	80	5
52	Double-Edge User receives 1/3 the damage inflicted in recoil.	Normal	Phys	120	100	15

* a legal move, just moved to level-up · ** new to this game

TMs & HMs 48

#	Move · where to get it	Type	Pow
TR02	Toxic Goldenrod Department Store Lower 2F (also at Celadon Department Store Upper 2F)	Poison	—
TM005	Roar	Normal	—
TM010	Hidden Power	Normal	60
TR10	Earthquake Mt. Mortar (hidden) (also at Celadon Department Store Upper 2F, Viridian Mart)	Ground	100
TM011	Sunny Day	Fire	—
TR11	Rock Slide Mt. Mortar 2F (hidden) (also at Celadon Department Store Upper 2F, Pewter Mart)	Rock	75
TM017	Protect Goldenrod Department Store 5F	Normal	—
TM021	Frustration Celadon Department Store 3F	Normal	—
TR26	Endure Goldenrod Department Store 4F (also at Celadon Department Store Upper 2F)	Normal	—
TM027	Return Celadon Department Store 3F	Normal	—
TM028	Dig Celadon Department Store 3F	Ground	80
TR30	Stone Edge Celadon Department Store Upper 2F (also at Pewter Mart)	Rock	100
TR31	Iron Tail Blackthorn / Battle Frontier Mart (also at Celadon Department Store Upper 2F, Indigo Plateau)	Steel	100
TM032	Body Slam	Normal	85
TM037	Sandstorm	Rock	—
TR37	Taunt Goldenrod Department Store 4F (also at Celadon Department Store Upper 2F)	Dark	—
TM039	Rock Tomb	Rock	60
TM041	Torment Goldenrod Department Store Upper 2F (also at Celadon Department Store 3F)	Dark	—
TM042	Facade	Normal	70
TM043	Secret Power	Normal	70
TM044	Rest	Psychic	—
TM045	Attract	Normal	—
TM059	Dragon Pulse	Dragon	85
TM064	Explosion	Normal	250
TM066	Payback	Dark	50
TM069	Rock Polish	Rock	—
TM074	Gyro Ball	Steel	—
TM076	Stealth Rock Goldenrod Department Store Upper 2F (also at Celadon Department Store 3F)	Rock	—
TM077	Psych Up Goldenrod Department Store Upper 2F	Normal	—
TM078	Captivate Celadon Department Store 3F	Normal	—
TM082	Sleep Talk	Normal	—
TM087	Swagger Celadon Department Store 3F	Normal	—
TM090	Substitute	Normal	—
TM091	Flash Cannon	Steel	80
TM098	Breaking Swipe Mahogany Mart Post-Rocket Hideout (also at Celadon Department Store 3F)	Dragon	60
TM099	Iron Head Goldenrod Department Store 5F	Steel	80
TM100	Dragon Dance Celadon Department Store 3F (also at Viridian Mart)	Dragon	—
TM105	Earth Power Mahogany Mart Post-Rocket Hideout (also at Celadon Department Store 3F)	Ground	90
TM106	Drill Run Goldenrod Department Store 5F	Ground	80
TM107	Heavy Slam Celadon Department Store 3F (also at Pewter Mart)	Steel	—
TM114	Curse Olivine Mart (also at Celadon Department Store 3F)	Ghost	—
TM134	Sand Tomb Violet City Mart (also at Celadon Department Store 3F)	Ground	35
TM137	Smack Down Celadon Department Store 3F (also at Pewter Mart)	Rock	50
TM144	High Horsepower Mahogany Mart Post-Rocket Hideout (also at Celadon Department Store 3F)	Ground	95
TM156	Double-Edge Goldenrod Department Store 5F	Normal	120
HM04	Strength	Normal	80
HM06	Rock Smash	Fighting	40
HM08	Rock Climb	Normal	90

Where to find Onix

Area	Method	Level
Cliff Cave	Grass (Morning / Day)	42-45
Cliff Cave	Grass (Night)	42-45
Digletts Cave	Grass (Morning / Day)	65-66
Rock Tunnel B1F	Rock Smash	12-21
Route 42	Grass (Morning / Day)	23-26
Route 42	Grass (Night)	23-24
Seafoam Islands B3F	Grass (Morning / Day)	71-73	5% rare

Other changes in this game

Evolves into Steelix — with Metal Coat, in the daytime
Evolves into Steelix — with Metal Coat, at night
Egg moves: Rock Slide, Flail, Explosion, Block, Defense Curl, Rollout, Rock Blast
Tutor moves: Ancient Power, Bind, Block, Body Slam, Bulldoze, Double-Edge, Dragon Pulse, Earth Power, Endure, Explosion, Flash Cannon, Headbutt, High Horsepower, Iron Head, Iron Tail, Meteor Beam, Mimic, Mud-Slap, Power Shift, Psych Up, Rest, Rock Slide, Rock Smash, Rollout, Scorching Sands, Sleep Talk, Snore, Stealth Rock, Stomping Tantrum, Stone Edge, Substitute, Swagger, Twister
A wild one can rarely hold Hard Stone.