This Pokémon's Speed stat is doubled during rain.
| Name | Slot |
|---|---|
| Psyduck | Hidden |
| Golduck | Hidden |
| Poliwag | Hidden |
| Poliwhirl | Hidden |
| Poliwrath | Hidden |
| Horsea | First |
| Goldeen | First |
| Seaking | First |
| Magikarp | First |
| Omanyte | First |
| Omastar | First |
| Kabuto | First |
| Kabutops | First |
| Qwilfish | Second |
| Mantine | First |
| Kingdra | First |
| Swampert (Mega Form) | First |
| Lotad | First |
| Lombre | First |
| Ludicolo | First |
| Surskit | First |
| Anorith | Second |
| Armaldo | Second |
| Feebas | First |
| Huntail | First |
| Gorebyss | First |
| Relicanth | First |
| Luvdisc | First |
| Buizel | First |
| Floatzel | First |
| Finneon | First |
| Lumineon | First |
| Mantyke | First |
| Tympole | First |
| Palpitoad | First |
| Seismitoad | First |
| Tirtouga | Hidden |
| Carracosta | Hidden |
| Beartic | Hidden |