Onix - Generation 3 learnset

Moves learnt by level up

Onix learns the following moves in Pokémon FireRed & LeafGreen at the levels specified.

Lv.	Move	Type	Cat.	Power	Acc.
1	Screech	Normal		—	85
1	Tackle	Normal		35	95
8	Bind	Normal		15	75
12	Rock Throw	Rock		50	90
19	Harden	Normal		—	—
23	Rage	Normal		20	100
30	DragonBreath	Dragon		60	100
34	Sandstorm	Rock		—	—
41	Slam	Normal		80	75
45	Iron Tail	Steel		100	75
52	Sand Tomb	Ground		15	70
56	Double-Edge	Normal		120	100

Egg moves

Onix learns the following moves via breeding in Pokémon FireRed & LeafGreen. Details and compatible parents can be found below.

Move	Type	Cat.	Power	Acc.
Block	Normal		—	—
Explosion	Normal		250	100
Flail	Normal		—	100
Rock Slide	Rock		75	90

Move Tutor moves

Onix can be taught these attacks in Pokémon FireRed & LeafGreen from move tutors (details):

Move	Type	Cat.	Power	Acc.
Body Slam	Normal		85	100
Double-Edge	Normal		120	100
Explosion	Normal		250	100
Mimic	Normal		—	—
Rock Slide	Rock		75	90
Substitute	Normal		—	—

Moves learnt by HM

Onix is compatible with these Hidden Machines in Pokémon FireRed & LeafGreen:

HM	Move	Type	Cat.	Power	Acc.
04	Strength	Normal		80	100
06	Rock Smash	Fighting		20	100

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon FireRed & LeafGreen:

TM	Move	Type	Cat.	Power	Acc.
05	Roar	Normal		—	100
06	Toxic	Poison		—	85
10	Hidden Power	Normal		60	100
11	Sunny Day	Fire		—	—
12	Taunt	Dark		—	100
17	Protect	Normal		—	—
21	Frustration	Normal		—	100
23	Iron Tail	Steel		100	75
26	Earthquake	Ground		100	100
27	Return	Normal		—	100
28	Dig	Ground		60	100
32	Double Team	Normal		—	—
37	Sandstorm	Rock		—	—
39	Rock Tomb	Rock		50	80
41	Torment	Dark		—	100
42	Facade	Normal		70	100
43	Secret Power	Normal		70	100
44	Rest	Psychic		—	—
45	Attract	Normal		—	100

Moves learnt by level up

Onix learns the following moves in Pokémon Emerald at the levels specified.

Lv.	Move	Type	Cat.	Power	Acc.
1	Screech	Normal		—	85
1	Tackle	Normal		35	95
9	Bind	Normal		15	75
13	Rock Throw	Rock		50	90
21	Harden	Normal		—	—
25	Rage	Normal		20	100
33	Sandstorm	Rock		—	—
37	Slam	Normal		80	75
45	Iron Tail	Steel		100	75
49	Sand Tomb	Ground		15	70
57	Double-Edge	Normal		120	100

Egg moves

Onix learns the following moves via breeding in Pokémon Emerald. Details and compatible parents can be found below.

Move	Type	Cat.	Power	Acc.
Block	Normal		—	—
Explosion	Normal		250	100
Flail	Normal		—	100
Rock Slide	Rock		75	90

Move Tutor moves

Onix can be taught these attacks in Pokémon Emerald from move tutors (details):

Move	Type	Cat.	Power	Acc.
Body Slam	Normal		85	100
Double-Edge	Normal		120	100
Endure	Normal		—	—
Explosion	Normal		250	100
Mimic	Normal		—	—
Mud-Slap	Ground		20	100
Psych Up	Normal		—	—
Rock Slide	Rock		75	90
Sleep Talk	Normal		—	—
Snore	Normal		40	100
Substitute	Normal		—	—
Swagger	Normal		—	90

Moves learnt by HM

Onix is compatible with these Hidden Machines in Pokémon Emerald:

HM	Move	Type	Cat.	Power	Acc.
04	Strength	Normal		80	100
06	Rock Smash	Fighting		20	100

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon Emerald:

TM	Move	Type	Cat.	Power	Acc.
05	Roar	Normal		—	100
06	Toxic	Poison		—	85
10	Hidden Power	Normal		60	100
11	Sunny Day	Fire		—	—
12	Taunt	Dark		—	100
17	Protect	Normal		—	—
21	Frustration	Normal		—	100
23	Iron Tail	Steel		100	75
26	Earthquake	Ground		100	100
27	Return	Normal		—	100
28	Dig	Ground		60	100
32	Double Team	Normal		—	—
37	Sandstorm	Rock		—	—
39	Rock Tomb	Rock		50	80
41	Torment	Dark		—	100
42	Facade	Normal		70	100
43	Secret Power	Normal		70	100
44	Rest	Psychic		—	—
45	Attract	Normal		—	100