Pokémechanics
FireRed & LeafGreen

#095Onix

Species
Rock Snake Pokémon
Type
Catch rate
45
Growth
Medium
Height
8.8 m
Weight
210.0 kg
Gender
50% ♂ 50% ♀
Egg cycles
25
Base friendship
70

Onix

Firered
It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.
Leafgreen
As it grows, the stone portions of its body harden to become similar to black-colored diamonds.

Base stats

EVs: +1 Defense

HP35
Attack45
Defense160
Sp. Atk30
Sp. Def45
Speed70
Total385

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.

Locations

Firered
Walking
Rock TunnelLv 13-1715%
Sevault CanyonLv 545%
Victory RoadLv 40-4880%
Leafgreen
Walking
Rock TunnelLv 13-1715%
Sevault CanyonLv 545%
Victory RoadLv 40-4880%

Damage taken

  • x0.5
  • x2
  • x0.5
  • x0.25
  • x2
  • x0.5
  • x1
  • x1
  • x2
  • x0.5
  • x4
  • x4
  • x0
  • x1
  • x2
  • x1
  • x1
Level Up
LevelAttack NameTypeClassPowerAccuracyPPEffect %
1Screech
Status
--
85
40
--
Lowers the target’s Defense by two stages.
1Tackle
Physical
40
100
35
--
Inflicts regular damage with no additional effect.
8Bind
Physical
15
85
20
100
Prevents the target from fleeing and inflicts damage for 2-5 turns.
12Rock Throw
Physical
50
90
15
--
Inflicts regular damage with no additional effect.
19Harden
Status
--
--
30
--
Raises the user’s Defense by one stage.
23Rage
Physical
20
100
20
--
If the user is hit after using this move, its Attack rises by one stage.
30Dragon Breath
Special
60
100
20
30
Has a chance to paralyze the target.
34Sandstorm
Status
--
--
10
--
Changes the weather to a sandstorm for five turns.
41Slam
Physical
80
75
20
--
Inflicts regular damage with no additional effect.
45Iron Tail
Physical
100
75
15
30
Has a chance to lower the target’s Defense by one stage.
52Sand Tomb
Physical
35
85
15
100
Prevents the target from fleeing and inflicts damage for 2-5 turns.
56Double-Edge
Physical
120
100
15
--
User receives 1/3 the damage inflicted in recoil.
Egg
Attack NameTypeClassPowerAccuracyPPEffect %
Block
Status
--
--
5
--
Prevents the target from leaving battle.
Explosion
Physical
250
100
5
--
User faints.
Flail
Physical
--
100
15
--
Inflicts more damage when the user has less HP remaining, with a maximum of 200 power.
Rock Slide
Physical
75
90
10
30
Has a chance to make the target flinch.
TM/HM
MachineAttack NameTypeClassPowerAccuracyPPEffect %
HM04Strength
Physical
80
100
15
--
Inflicts regular damage with no additional effect.
HM06Rock Smash
Physical
40
100
15
50
Has a chance to lower the target’s Defense by one stage.
TM05Roar
Status
--
--
20
--
Immediately ends wild battles. Forces trainers to switch Pokémon.
TM06Toxic
Status
--
90
10
--
Badly poisons the target, inflicting more damage every turn.
TM10Hidden Power
Special
60
100
15
--
Power and type depend upon user’s IVs. Power can range from 30 to 70.
TM11Sunny Day
Status
--
--
5
--
Changes the weather to sunny for five turns.
TM12Taunt
Status
--
100
20
--
For the next few turns, the target can only use damaging moves.
TM17Protect
Status
--
--
10
--
Prevents any moves from hitting the user this turn.
TM21Frustration
Physical
--
100
20
--
Power increases as happiness decreases, up to a maximum of 102.
TM23Iron Tail
Physical
100
75
15
30
Has a chance to lower the target’s Defense by one stage.
TM26Earthquake
Physical
100
100
10
--
Inflicts regular damage and can hit Dig users.
TM27Return
Physical
--
100
20
--
Power increases with happiness, up to a maximum of 102.
TM28Dig
Physical
80
100
10
--
User digs underground, dodging all attacks, and hits next turn.
TM32Double Team
Status
--
--
15
--
Raises the user’s evasion by one stage.
TM37Sandstorm
Status
--
--
10
--
Changes the weather to a sandstorm for five turns.
TM39Rock Tomb
Physical
60
95
15
100
Has a chance to lower the target’s Speed by one stage.
TM41Torment
Status
--
100
15
--
Prevents the target from using the same move twice in a row.
TM42Facade
Physical
70
100
20
--
Power doubles if user is burned, paralyzed, or poisoned.
TM43Secret Power
Physical
70
100
20
30
Has a chance to inflict a status effect which depends upon the terrain.
TM44Rest
Status
--
--
5
--
User sleeps for two turns, completely healing itself.
TM45Attract
Status
--
100
15
--
Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
Tutor
Attack NameTypeClassPowerAccuracyPPEffect %
Body Slam
Physical
85
100
15
30
Has a chance to paralyze the target.
Double-Edge
Physical
120
100
15
--
User receives 1/3 the damage inflicted in recoil.
Explosion
Physical
250
100
5
--
User faints.
Mimic
Status
--
--
10
--
Copies the target’s last used move.
Rock Slide
Physical
75
90
10
30
Has a chance to make the target flinch.
Substitute
Status
--
--
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.

Other generations

Red, Blue & Yellow, Gold, Silver & Crystal, Ruby, Sapphire & Emerald, Diamond, Pearl & Platinum, HeartGold & SoulSilver, Black & White, Black 2 & White 2, X & Y, Omega Ruby & Alpha Sapphire, Sun & Moon, Ultra Sun & Ultra Moon, Sword & Shield, Brilliant Diamond & Shining Pearl