95: Onix

Essentials

Onix

Rock Snake Pokémon

Abilities

Rock Head: Protects against recoil damage.
Sturdy: Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.

Hidden Ability

Weak Armor: Raises Speed and lowers Defense by one stage each upon being hit by a physical move.

Damage Taken

Pokédex Numbers

Introduced in
National: 95
Kanto: 95
Original Johto: 62
Original Sinnoh: 34
Extended Sinnoh: 34
Updated Johto: 62
Updated Unova: 71
Coastal Kalos: 53

Names

Japanese: イワーク (iwaaku)
: イワーク
Official roomaji: Iwark
Korean: 롱스톤
Chinese: 大岩蛇
: 大岩蛇
French: Onix
German: Onix
Spanish: Onix
Italian: Onix

Breeding

Gender

½ male, ½ female

Egg groups

Mineral

Hatch counter

Steps to hatch

6630 / 3570

Compatibility

Training

Base EXP

Effort points

1 Defense

Capture rate

Base happiness

Growth rate

medium

Wild held items

		nothing
	5%	Hard Stone
		nothing
		nothing
		nothing
		nothing

Evolution

Compare this family

Baby	Basic	Stage 1	Stage 2
	Onix	Steelix Trade, while holding a Metal Coat

Stats

			Level
			Effort
		Pctile	Min IVs	Max IVs
HP	35	4.5	243	274
Attack	45	12.0	158	189
Defense	160	98.7	388	419
Special Attack	30	5.7	128	159
Special Defense	45	15.6	158	189
Speed	70	53.9	208	239
Total	385	34.1

Pokéathlon Performance

Minimum; Base; Maximum

Speed
Power
Skill
Stamina
Jump
Total: 8/12/15

Flavor

Detailed flavor page covering all versions

Flavor Text

: It burrows through the ground at a speed of 50 mph while feeding on large boulders.
: Opening its large mouth, it ingests massive amounts of soil and creates long tunnels.

: Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett.
: It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.
: 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.

Sprites

Miscellany

Species: Rock Snake Pokémon
Color: Gray
Cry
Habitat: cave
Footprint
Shape: Caudal

Height

28'10.5"
8.8 m

Weight

2100

463.0 lb
210.0 kg

Locations

Ridiculously detailed breakdown

Red

Blue

Yellow

Gold

Silver

Crystal

FireRed

LeafGreen

Diamond

Pearl

Platinum

HeartGold

SoulSilver

Black

Relic Castle, c

White

Relic Castle, c

Black 2

White 2

X

Glittering Cave, Unknown Area 303

Y

Glittering Cave, Unknown Area 303

Glittering Cave, Unknown Area 304

Pal Park

Area: Mountain
Score: 80
Rate: 10

Moves

Rock and Ground moves get STAB, and have their type highlighted in green.

Physical moves better suit Onix's higher Attack, and have their class highlighted in green.

												Move	Type	Class	PP	Power	Acc	Pri	Effect
Level up: Learned when a Pokémon reaches a certain level.
				—	—	—	—	—	—	—	—	Mud Sport			15	—	—		Halves all Electric-type damage.
—	—	—	—	—	—	—	—	—	—	—	—	Tackle			35	40	100%		Inflicts regular damage with no additional effect.
				—	—	—	—	—	—	—	—	Harden			30	—	—		Raises the user's Defense by one stage.
				—	—	—	—	—	—	—	—	Bind			20	15	85%		Prevents the target from fleeing and inflicts damage for 2-5 turns.
							4	4	4	4	4	Curse			10	—	—		Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.
—	—	—	—	6	6	6						Screech			40	—	85%		Lowers the target's Defense by two stages.
15	10	9	8									Bind			20	15	85%		Prevents the target from fleeing and inflicts damage for 2-5 turns.
19	14	13	12	9	9	9	7	7	7	7	7	Rock Throw			15	50	90%		Inflicts regular damage with no additional effect.
	23	21	19									Harden			30	—	—		Raises the user's Defense by one stage.
25	27	25	23	14	14	14	10					Rage			20	20	100%		If the user is hit after using this move, its Attack rises by one stage.
				17	17	17	13	10	10	10	10	Rock Tomb			15	60	95%		Has a 100% chance to lower the target's Speed by one stage.
								13	13	13	13	Rage			20	20	100%		If the user is hit after using this move, its Attack rises by one stage.
							16	16	16	16	16	Stealth Rock			20	—	—		Causes damage when opposing Pokémon switch in.
							19	19	19	19	19	Rock Polish			20	—	—		Raises the user's Speed by two stages.
								20	20	20	20	Gyro Ball			5	*	100%		Power raises when the user has lower Speed, up to a maximum of 150.
						22	22	22	22	22	22	Smack Down			15	50	100%		Removes any immunity to Ground damage.
			30				25	25	25	25	25	Dragon Breath			20	60	100%		Has a 30% chance to paralyze the target.
	36	33	34	22	22	25						Sandstorm			10	—	—		Changes the weather to a sandstorm for five turns.
33	40	37	41	25	25		28	28	28	28	28	Slam			20	80	75%		Inflicts regular damage with no additional effect.
43												Harden			30	—	—		Raises the user's Defense by one stage.
							31	31	31	31	31	Screech			40	—	85%		Lowers the target's Defense by two stages.
							34	34	34	34	34	Rock Slide			10	75	90%		Has a 30% chance to make the target flinch.
							37	37	37	37	37	Sand Tomb			15	35	85%		Prevents the target from fleeing and inflicts damage for 2-5 turns.
				30	30	30						Rock Polish			20	—	—		Raises the user's Speed by two stages.
						33						Slam			20	80	75%		Inflicts regular damage with no additional effect.
						38						Stealth Rock			20	—	—		Causes damage when opposing Pokémon switch in.
				33	33	41						Dragon Breath			20	60	100%		Has a 30% chance to paralyze the target.
					38	46						Curse			10	—	—		Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.
		45	45	38	41	49	40	40	40	40	40	Iron Tail			15	100	75%		Has a 30% chance to lower the target's Defense by one stage.
							43	43	43	43	43	Dig			10	80	100%		User digs underground, dodging all attacks, and hits next turn.
		49	52	41	46	54						Sand Tomb			15	35	85%		Prevents the target from fleeing and inflicts damage for 2-5 turns.
		57	56	46	49	57						Double-Edge			15	120	100%		User receives 1/3 the damage inflicted in recoil.
				49	54	62	46	46	46	46	46	Stone Edge			5	100	80%		Has an increased chance for a critical hit.
							49	49	49	49	49	Double-Edge			15	120	100%		User receives 1/3 the damage inflicted in recoil.
							52	52	52	52	52	Sandstorm			10	—	—		Changes the weather to a sandstorm for five turns.
												Move	Type	Class	PP	Power	Acc	Pri	Effect
Egg: Appears on a newly-hatched Pokémon, if the father had the same move.
												Block			5	—	—		Prevents the target from leaving battle.
												Defense Curl			40	—	—		Raises user's Defense by one stage.
												Explosion			5	250	100%		User faints.
												Flail			15	*	100%		Inflicts more damage when the user has less HP remaining, with a maximum of 200 power.
												Heavy Slam			10	*	100%		Power is higher when the user weighs more than the target, up to a maximum of 120.
												Rock Blast			10	25	90%		Hits 2-5 times in one turn.
												Rock Climb			20	90	85%		Has a 20% chance to confuse the target.
												Rock Slide			10	75	90%		Has a 30% chance to make the target flinch.
												Rollout			20	30	90%		Power doubles every turn this move is used in succession after the first, resetting after five turns.
												Rototiller			10	—	—		Raises the Attack and Special Attack of all Grass Pokémon in battle.
												Stealth Rock			20	—	—		Causes damage when opposing Pokémon switch in.
												Wide Guard			10	—	—	3	Prevents any multi-target moves from hitting friendly Pokémon this turn.
												Move	Type	Class	PP	Power	Acc	Pri	Effect
Tutor: Can be taught at any time by an NPC.
												Ancient Power			5	60	100%		Has a 10% chance to raise all of the user's stats by one stage.
												Bind			20	15	85%		Prevents the target from fleeing and inflicts damage for 2-5 turns.
												Block			5	—	—		Prevents the target from leaving battle.
												Body Slam			15	85	100%		Has a 30% chance to paralyze the target.
												Double-Edge			15	120	100%		User receives 1/3 the damage inflicted in recoil.
												Dragon Pulse			10	85	100%		Inflicts regular damage with no additional effect.
												Earth Power			10	90	100%		Has a 10% chance to lower the target's Special Defense by one stage.
												Endure			10	—	—	4	Prevents the user's HP from lowering below 1 this turn.
												Explosion			5	250	100%		User faints.
												Headbutt			15	70	100%		Has a 30% chance to make the target flinch.
												Iron Head			15	80	100%		Has a 30% chance to make the target flinch.
												Iron Tail			15	100	75%		Has a 30% chance to lower the target's Defense by one stage.
												Mimic			10	—	—		Copies the target's last used move.
												Mud-Slap			10	20	100%		Has a 100% chance to lower the target's accuracy by one stage.
												Psych Up			10	—	—		Discards the user's stat changes and copies the target's.
												Rock Slide			10	75	90%		Has a 30% chance to make the target flinch.
												Rollout			20	30	90%		Power doubles every turn this move is used in succession after the first, resetting after five turns.
												Self-Destruct			5	200	100%		User faints.
												Sleep Talk			10	—	—		Randomly uses one of the user's other three moves. Only works if the user is sleeping.
												Snore			15	50	100%		Has a 30% chance to make the target flinch. Only works if the user is sleeping.
												Stealth Rock			20	—	—		Causes damage when opposing Pokémon switch in.
												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.
												Swagger			15	—	85%		Raises the target's Attack by two stages and confuses the target.
												Twister			20	40	100%		Has a 20% chance to make the target flinch.
												Move	Type	Class	PP	Power	Acc	Pri	Effect
Machine: Can be taught at any time by using a TM or HM.
	02											Headbutt			15	70	100%		Has a 30% chance to make the target flinch.
	03											Curse			10	—	—		Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.
	05	05	05	05	05	05	05	05	05	05	05	Roar			20	—	—	-6	Immediately ends wild battles. Forces trainers to switch Pokémon.
06	06	06	06	06	06	06	06	06	06	06	06	Toxic			10	—	90%		Badly poisons the target, inflicting more damage every turn.
	08											Rock Smash			15	40	100%		Has a 50% chance to lower the target's Defense by one stage.
	10	10	10	10	10	10	10	10	10	10	10	Hidden Power			15	60	100%		Power and type depend upon user's IVs. Power can range from 30 to 70.
	11	11	11	11	11	11	11	11	11	11	11	Sunny Day			5	—	—		Changes the weather to sunny for five turns.
	13											Snore			15	50	100%		Has a 30% chance to make the target flinch. Only works if the user is sleeping.
		12	12	12	12	12	12	12	12	12	12	Taunt			20	—	100%		For the next few turns, the target can only use damaging moves.
08												Body Slam			15	85	100%		Has a 30% chance to paralyze the target.
	17	17	17	17	17	17	17	17	17	17	17	Protect			10	—	—	4	Prevents any moves from hitting the user this turn.
	20											Endure			10	—	—	4	Prevents the user's HP from lowering below 1 this turn.
	21	21	21	21	21	21	21	21	21	21	21	Frustration			20	*	100%		Power increases as happiness decreases, up to a maximum of 102.
						23	23	23	23	23	23	Smack Down			15	50	100%		Removes any immunity to Ground damage.
	23	23	23	23	23							Iron Tail			15	100	75%		Has a 30% chance to lower the target's Defense by one stage.
09												Take Down			20	90	85%		User receives 1/4 the damage it inflicts in recoil.
10												Double-Edge			15	120	100%		User receives 1/3 the damage inflicted in recoil.
20												Rage			20	20	100%		If the user is hit after using this move, its Attack rises by one stage.
26	26	26	26	26	26	26	26	26	26	26	26	Earthquake			10	100	100%		Inflicts regular damage and can hit Dig users.
	27	27	27	27	27	27	27	27	27	27	27	Return			20	*	100%		Power increases with happiness, up to a maximum of 102.
27												Fissure			5	*	30%		Causes a one-hit KO.
28	28	28	28	28	28	28	28	28	28			Dig			10	80	100%		User digs underground, dodging all attacks, and hits next turn.
	31											Mud-Slap			10	20	100%		Has a 100% chance to lower the target's accuracy by one stage.
31												Mimic			10	—	—		Copies the target's last used move.
32	32	32	32	32	32	32	32	32	32	32	32	Double Team			15	—	—		Raises the user's evasion by one stage.
	34											Swagger			15	—	85%		Raises the target's Attack by two stages and confuses the target.
	35											Sleep Talk			10	—	—		Randomly uses one of the user's other three moves. Only works if the user is sleeping.
	37	37	37	37	37	37	37	37	37	37	37	Sandstorm			10	—	—		Changes the weather to a sandstorm for five turns.
		39	39	39	39	39	39	39	39	39	39	Rock Tomb			15	60	95%		Has a 100% chance to lower the target's Speed by one stage.
		41	41	41	41	41	41	41	41	41	41	Torment			15	—	100%		Prevents the target from using the same move twice in a row.
		42	42	42	42	42	42	42	42	42	42	Facade			20	70	100%		Power doubles if user is burned, paralyzed, or poisoned.
		43	43	43	43							Secret Power			20	70	100%		Has a 30% chance to inflict a status effect which depends upon the terrain.
34												Bide			10	*	—	1	User waits for two turns, then hits back for twice the damage it took.
36												Self-Destruct			5	200	100%		User faints.
40												Skull Bash			10	130	100%		Raises the user's Defense by one stage. User charges for one turn before attacking.
44	44	44	44	44	44	44	44	44	44	44	44	Rest			10	—	—		User sleeps for two turns, completely healing itself.
47												Explosion			5	250	100%		User faints.
48												Rock Slide			10	75	90%		Has a 30% chance to make the target flinch.
	45	45	45	45	45	45	45	45	45	45	45	Attract			15	—	100%		Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
				58	58							Endure			10	—	—	4	Prevents the user's HP from lowering below 1 this turn.
				59	59							Dragon Pulse			10	85	100%		Inflicts regular damage with no additional effect.
						48	48	48	48	48	48	Round			15	60	100%		Has double power if it's used more than once per turn.
										59	59	Brutal Swing			20	60	100%		Inflicts regular damage with no additional effect.
				64	64	64	64	64	64	64	64	Explosion			5	250	100%		User faints.
				66	66	66	66	66	66	66	66	Payback			10	50	100%		Power is doubled if the target has already moved this turn.
				69	69	69	69	69	69	69	69	Rock Polish			20	—	—		Raises the user's Speed by two stages.
				71	71	71	71	71	71	71	71	Stone Edge			5	100	80%		Has an increased chance for a critical hit.
				74	74	74	74	74	74	74	74	Gyro Ball			5	*	100%		Power raises when the user has lower Speed, up to a maximum of 150.
				76	76							Stealth Rock			20	—	—		Causes damage when opposing Pokémon switch in.
				77	77	77	77	77	77	77	77	Psych Up			10	—	—		Discards the user's stat changes and copies the target's.
						78	78	78	78	78	78	Bulldoze			20	60	100%		Has a 100% chance to lower the target's Speed by one stage.
				78	78							Captivate			20	—	100%		Lowers the target's Special Attack by two stages if it's the opposite gender.
				80	80	80	80	80	80	80	80	Rock Slide			10	75	90%		Has a 30% chance to make the target flinch.
						82	82	82	82	82	82	Dragon Tail			10	60	90%	-6	Ends wild battles. Forces trainers to switch Pokémon.
				82	82							Sleep Talk			10	—	—		Randomly uses one of the user's other three moves. Only works if the user is sleeping.
				83	83							Natural Gift			15	*	100%		Power and type depend on the held berry.
				87	87	87	87	87	87	87	87	Swagger			15	—	85%		Raises the target's Attack by two stages and confuses the target.
								88	88	88	88	Sleep Talk			10	—	—		Randomly uses one of the user's other three moves. Only works if the user is sleeping.
50				90	90	90	90	90	90	90	90	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.
				91	91	91	91	91	91	91	91	Flash Cannon			10	80	100%		Has a 10% chance to lower the target's Special Defense by one stage.
									94			Secret Power			20	70	100%		Has a 30% chance to inflict a status effect which depends upon the terrain.
						94	94	94				Rock Smash			15	40	100%		Has a 50% chance to lower the target's Defense by one stage.
								96	96	96	96	Nature Power			20	—	—		Uses a move which depends upon the terrain.
								100	100	100	100	Confide			20	—	—		Lowers the target's Special Attack by one stage.
H4	H4	H4	H4	H4	H4	H4	H4	H4	H4			Strength			15	80	100%		Inflicts regular damage with no additional effect.
		H6	H6	H6	H6				H6			Rock Smash			15	40	100%		Has a 50% chance to lower the target's Defense by one stage.
				H8	H8							Rock Climb			20	90	85%		Has a 20% chance to confuse the target.