‹ #94 Gengar

Onix

#95 (Kanto)

#96 Drowzee ›

Pokémon type

Rock

Ground

Onix weaknesses

Onix is weak to Fighting, Ground, Steel and Ice-type moves, and doubly weak to Water and Grass-type moves.

256%

160%

Resistances

Onix is resistant to Normal, Flying, Rock and Fire-type moves, and doubly resistant to Poison and Electric-type moves.

63%

39%

Best moveset for Onix

The best moves for Onix are Rock Throw and Breaking Swipe when attacking Pokémon in Gyms. This move combination has the highest total DPS. In Trainer Battles, Rock Throw and Stone Edge deal the most damage per turn.

Attacking

Rock Throw

15.6DPS

Breaking Swipe

45DPS

Defending

Rock Throw

15.6DPS

Rock Slide Elite TM

36DPS

Trainer Battles

Rock Throw

2.5EPT

Stone Edge

2.18DPE

View all moves »

Evolution calculator »

Evolution

There are 3 Pokémon in the Onix family, including 1 Mega Pokémon. Onix evolves into Steelix (Metal Coat) for 50 Candy, then temporarily into Mega Steelix.

Onix

Steelix

Mega Steelix

Onix requires Metal Coat to evolve into Steelix.
Evolving Mega Steelix costs 200 Mega Energy the first time, and 40 Mega Energy every time after.

Game images

Onix, with the shiny version on the right. There is a very low chance of getting a shiny one.

Events

GO Battle League: Tales of Transformation

2nd Sep 2025

Summary

Onix is a Rock & Ground Pokémon. It is weak to Water, Grass, Fighting, Ground, Steel and Ice moves. Onix's best moveset is Rock Throw & Breaking Swipe and it has a Max CP of 1,245. Onix evolves into Steelix.

About

"Onix has a magnet in its brain. It acts as a compass so that this Pokémon does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother."

Moves & Movesets

All moves

Raids

Trainer Battles

Quick move	Damage	EPS	DPS
Rock Throw	13	8	15.6
Tackle	5	10	10

Main move	Damage	Energy	DPE
Sand Tomb	60	3	2.18
Rock Slide Elite TM	75	2	1.8
Heavy Slam	70	2	1.4
Breaking Swipe	45	3	1.36
Stone Edge	105	1	1.26
Iron Head Elite TM	60	2	1.2
Return Purified	25	3	0.76
Frustration Shadow	10	3	0.3

Quick move	Damage	Turns	DPT	EPT
Tackle	3	1	3	3
Rock Throw	8	2	4.8	2.5

Main move	Damage	Energy	DPE
Stone Edge	100	55	2.18
Rock Slide Elite TM	75	45	2
Return Purified	130	70	1.86
Iron Head Elite TM	85	50	1.7
Sand Tomb ▼ def	55	45	1.47
Heavy Slam	70	50	1.4
Breaking Swipe ▼ att	50	50	1
Frustration Shadow	10	70	0.14

The moves highlighted in green benefit from the Same Type Attack Bonus, and deal 20% more damage.

All movesets

Attacking

Defending

Trainer Battles

Quick move	Main move	DPS	Relative
Rock Throw 15.6 DPS	Breaking Swipe 45 DPS	5.2	100%
Rock Throw 15.6 DPS	Rock Slide Elite TM 36 DPS	5.1	99%
Rock Throw 15.6 DPS	Stone Edge 50.4 DPS	5.1	99%
Rock Throw 15.6 DPS	Heavy Slam 35 DPS	4.9	95%
Tackle 10 DPS	Breaking Swipe 45 DPS	4.9	94%
Tackle 10 DPS	Rock Slide Elite TM 36 DPS	4.8	93%
Rock Throw 15.6 DPS	Return Purified 50 DPS	4.8	93%
Tackle 10 DPS	Stone Edge 50.4 DPS	4.8	92%
Rock Throw 15.6 DPS	Iron Head Elite TM 30 DPS	4.6	89%
Tackle 10 DPS	Heavy Slam 35 DPS	4.6	88%
Tackle 10 DPS	Return Purified 50 DPS	4.4	84%
Tackle 10 DPS	Iron Head Elite TM 30 DPS	4.2	82%
Rock Throw 15.6 DPS	Sand Tomb 18 DPS	4	77%
Rock Throw 15.6 DPS	Frustration Shadow 5 DPS	3.9	76%
Tackle 10 DPS	Sand Tomb 18 DPS	3.7	71%
Tackle 10 DPS	Frustration Shadow 5 DPS	3.2	62%

Quick move	Main move	DPS	Relative
Rock Throw 15.6 DPS	Rock Slide Elite TM 36 DPS	1.9	107%
Rock Throw 15.6 DPS	Stone Edge 50.4 DPS	1.8	100%
Rock Throw 15.6 DPS	Sand Tomb 18 DPS	1.8	99%
Rock Throw 15.6 DPS	Heavy Slam 35 DPS	1.8	99%
Rock Throw 15.6 DPS	Breaking Swipe 45 DPS	1.7	97%
Rock Throw 15.6 DPS	Iron Head Elite TM 30 DPS	1.7	94%
Rock Throw 15.6 DPS	Return Purified 50 DPS	1.5	83%
Tackle 10 DPS	Rock Slide Elite TM 36 DPS	1.2	69%
Tackle 10 DPS	Sand Tomb 18 DPS	1.2	66%
Rock Throw 15.6 DPS	Frustration Shadow 5 DPS	1.2	64%
Tackle 10 DPS	Heavy Slam 35 DPS	1.1	61%
Tackle 10 DPS	Stone Edge 50.4 DPS	1.1	60%
Tackle 10 DPS	Breaking Swipe 45 DPS	1.1	60%
Tackle 10 DPS	Iron Head Elite TM 30 DPS	1	57%
Tackle 10 DPS	Return Purified 50 DPS	0.9	49%
Tackle 10 DPS	Frustration Shadow 5 DPS	0.7	36%

Quick move	Main move	Turns	DPT	Relative
Rock Throw 2.5 EPT	Stone Edge 2.18 DPE	22	10.3	100%
Rock Throw 2.5 EPT	Rock Slide Elite TM 2 DPE	18	9.8	96%
Tackle 3 EPT	Stone Edge 2.18 DPE	19	9.6	93%
Rock Throw 2.5 EPT	Return Purified 1.86 DPE	28	9.4	92%
Rock Throw 2.5 EPT	Iron Head Elite TM 1.7 DPE	20	9.1	88%
Tackle 3 EPT	Rock Slide Elite TM 2 DPE	15	9	88%
Tackle 3 EPT	Return Purified 1.86 DPE	24	8.6	84%
Rock Throw 2.5 EPT	Sand Tomb 1.47 DPE	18	8.5	83%
Rock Throw 2.5 EPT	Heavy Slam 1.4 DPE	20	8.3	81%
Tackle 3 EPT	Iron Head Elite TM 1.7 DPE	17	8.1	79%
Tackle 3 EPT	Sand Tomb 1.47 DPE	15	7.4	72%
Rock Throw 2.5 EPT	Breaking Swipe 1 DPE	20	7.3	71%
Tackle 3 EPT	Heavy Slam 1.4 DPE	17	7.2	70%
Tackle 3 EPT	Breaking Swipe 1 DPE	17	6	59%
Rock Throw 2.5 EPT	Frustration Shadow 0.14 DPE	28	5.2	50%
Tackle 3 EPT	Frustration Shadow 0.14 DPE	24	3.4	33%

A rough guide only. Turns is how many turns of Fast Attacks it takes to reach the Charged Attack; DPT is the damage per turn over repeated Fast and Charged Attacks, from move power and STAB. It leaves out shields, stat changes and matchups.

Counters & Raids

What counters Onix?

Onix is weak to Fighting, Ground, Steel and Ice moves, and doubly weak to Water and Grass moves.

The best counter to Onix is Primal Kyogre with Waterfall and Origin Pulse, followed by Mega Greninja, Mega Sceptile and Mega Starmie.

The top Onix counters, ranked by the damage each Pokémon and moveset does to it. Filter the list to see how your own Pokémon compare.

Pokémon	Moveset	Effective damage
Primal Kyogre	Waterfall Origin Pulse	100%
Mega Greninja	Water Shuriken Hydro Cannon	97%
Mega Greninja	Water Shuriken Surf+	97%
Mega Greninja	Bubble Hydro Cannon	95%
Mega Sceptile	Bullet Seed Frenzy Plant	95%
Mega Greninja	Bubble Surf+	94%
Primal Kyogre	Waterfall Hydro Pump	93%
Primal Kyogre	Waterfall Surf	92%
Mega Sceptile	Fury Cutter Frenzy Plant	92%
Mega Starmie	Water Gun Liquidation+	89%

These moves are calculated using type advantages / disadvantages, and including STAB. Click here for more info »

Stats & IVs

Base stats

Attack		85
Defense		232
Stamina		111

Max HP

Level 40

Size

Height	8.8 m
Weight	210 kg

Other

Base capture rate	0%
Base flee rate	0%
Buddy walk distance	5 km

Max CP

Level 15 Research encounters	472
Level 20 Max hatched / raids	629
Level 30 Max wild	944
Level 40	1,101
Level 50	1,245

Max CP with weather boost

Level 25 (raids)	787
Level 35 (wild)	1,023