Onix is a PokeBonk League partner of uncommon rarity and Rock / Ground type. Its unlock challenge counts from your first run, with no League members needed. It does not evolve during a run.
- Passive
- Armor and max HP but slower; periodic falling rocks.
- How to unlock
- Win Viridian Forest.
- League members needed
- None
- Evolution
- Does not evolve in PokeBonk.
Partner data comes from community testing on v0.7.7 (2026-10-20), before Season 2. The game is now on v0.8.28, so some challenges may have changed since, and we re-check them as we play.
Moves and fusions for Onix
- Signature fusion: Rock Snake, from Stealth Rock + Head Smash at max level in Bill's Machine.
- Two maxed Rock moves fuse into Meteorite Shower, the Rock type fusion, an easy target that fits Onix's type.
- Two maxed Ground moves fuse into Seismic Fault, the Ground type fusion, an easy target that fits Onix's type.
- Shattered Glacier is a reaction fusion from a Ice move and a Fighting / Rock / Steel move.
Plan a build with Onix All move fusions →
Other Rock partners
Geodude · Rhyhorn · Omanyte · Kabuto · Aerodactyl
Other Ground partners
Sandshrew · Diglett · Geodude · Cubone · Rhyhorn
How do I unlock Onix in PokeBonk?
Win Viridian Forest.
What type is Onix in PokeBonk?
Rock / Ground. Armor and max HP but slower; periodic falling rocks.
When does Onix evolve in PokeBonk?
Does not evolve in PokeBonk.