Type Matchup Summary
As a Rock/Ground-type Pokemon, Onix has 6 weaknesses, 5 resistances, and 1 immunity.
Normal
0.5×
Fighting
2×
Flying
0.5×
Poison
0.25×
Ground
2×
Rock
0.5×
Bug
1×
Ghost
1×
Steel
2×
Fire
0.5×
Water
4×
Grass
4×
Electric
0×
Psychic
1×
Ice
2×
Dragon
1×
Dark
1×
Fairy
1×
How to Beat Onix
Use Water or Grass-type moves for 4× super effective damage — the most efficient way to KO Onix.
Alternatively, use Fighting, Ground, Steel, Ice-type moves for 2× super effective damage.
Avoid Electric-type moves — Onix is completely immune.