| Pokédex ID | 139 | ||||
|---|---|---|---|---|---|
| Name | Omastar | ||||
| Pokémon type 1 | Rock | ||||
| Pokémon type 2 | Water | ||||
| Egg group 1 | Water 1 | ||||
| Egg group 2 | Water 3 | ||||
| Immune to | |||||
| 1/4 damage from | Fire | ||||
| Half damage from | Normal | Flying | Poison | Fire | Ice |
| 4x damage from | Grass | ||||
| Double damage from | Fighting | Ground | Grass | Electric |