Onix in FireRed.
Onix appears in 28 places in Pokemon FireRed. The best odds are Victory Road (walking in grass or caves, 10% at level 40).
Where to find Onix
odds are the game's slot tables| Area | How | Level | Odds |
|---|---|---|---|
| Victory Road1F | Walking in grass or caves (FireRed only) | 40 | 10% |
| Victory Road1F | Walking in grass or caves (FireRed only) | 43 | 10% |
| Victory Road1F | Walking in grass or caves (FireRed only) | 46 | 10% |
| Victory Road1F | Walking in grass or caves (LeafGreen only) | 40 | 10% |
| Victory Road1F | Walking in grass or caves (LeafGreen only) | 43 | 10% |
| Victory Road1F | Walking in grass or caves (LeafGreen only) | 46 | 10% |
| Victory Road2F | Walking in grass or caves (FireRed only) | 45 | 10% |
| Victory Road2F | Walking in grass or caves (FireRed only) | 48 | 10% |
| Victory Road2F | Walking in grass or caves (LeafGreen only) | 45 | 10% |
| Victory Road2F | Walking in grass or caves (LeafGreen only) | 48 | 10% |
| Victory Road3F | Walking in grass or caves (FireRed only) | 40 | 10% |
| Victory Road3F | Walking in grass or caves (FireRed only) | 43 | 10% |
| Victory Road3F | Walking in grass or caves (FireRed only) | 46 | 10% |
| Victory Road3F | Walking in grass or caves (LeafGreen only) | 40 | 10% |
| Victory Road3F | Walking in grass or caves (LeafGreen only) | 43 | 10% |
| Victory Road3F | Walking in grass or caves (LeafGreen only) | 46 | 10% |
| Rock TunnelB1F | Walking in grass or caves (FireRed only) | 13 | 5% |
| Rock TunnelB1F | Walking in grass or caves (LeafGreen only) | 13 | 5% |
| Sevault CanyonSevaultCanyon | Walking in grass or caves (FireRed only) | 54 | 5% |
| Sevault CanyonSevaultCanyon | Walking in grass or caves (LeafGreen only) | 54 | 5% |
| Rock Tunnel1F | Walking in grass or caves (FireRed only) | 13 | 4% |
| Rock Tunnel1F | Walking in grass or caves (LeafGreen only) | 13 | 4% |
| Rock TunnelB1F | Walking in grass or caves (FireRed only) | 15 | 4% |
| Rock TunnelB1F | Walking in grass or caves (LeafGreen only) | 15 | 4% |
| Rock Tunnel1F | Walking in grass or caves (FireRed only) | 15 | 1% |
| Rock Tunnel1F | Walking in grass or caves (LeafGreen only) | 15 | 1% |
| Rock TunnelB1F | Walking in grass or caves (FireRed only) | 17 | 1% |
| Rock TunnelB1F | Walking in grass or caves (LeafGreen only) | 17 | 1% |
Evolution
2 stages
Onix
SteelixEvolves into Steelix when traded holding a Metal Coat (a link cable or Switch trade, not an in-game trade).
Evolve now or wait
from the game's learnsets and the relearner ruleOnix evolves when traded; the comparison below assumes you do it at level 13, the level you first meet it. Evolving then forfeits 1 move that Onix would still learn: Sand Tomb at 52. Steelix learns 1 move of its own after that: Crunch at 52.
| Move you would forfeit | Level | Can you get it back? |
|---|---|---|
| Sand Tomb | 52 | No. The Move Relearner only teaches moves from the current form's own level-up list, so once it is Steelix this move is gone. |
Rule the game applies: the Move Relearner on Two Island (he takes two Tiny Mushrooms or one Big Mushroom) teaches only the level-up moves of the form you hand him, at or below its current level. Delaying an evolution costs the evolved form's higher base stats for every level you wait; a move you barely use is not worth that.
Onix learnset in FireRed
12 level-up moves · 21 machinesBy level
Steelix by level
TMs and HMs it can learn (21)
HM04 Strength, HM06 Rock Smash, TM05 Roar, TM06 Toxic, TM10 Hidden Power, TM11 Sunny Day, TM12 Taunt, TM17 Protect, TM21 Frustration, TM23 Iron Tail, TM26 Earthquake, TM27 Return, TM28 Dig, TM32 Double Team, TM37 Sandstorm, TM39 Rock Tomb, TM41 Torment, TM42 Facade, TM43 Secret Power, TM44 Rest, TM45 Attract