Boosts its Speed in sunshine.
Chlorophyll is a very common ability for grass type Pokémon. When a Pokémon with Chlorophyll is in sunny weather, its Speed stat is doubled!
This can make a significant difference in battle when the user already has a high Speed stat to push over the edge. If used on a lower speed Pokémon, well the effect might not be as noticeable but will still be helpful!
| #091 | Bellossom | PrimarySecondary | Unknown | |
| #069 | Bellsprout | PrimarySecondary | Unknown | |
| #264 | Bulbasaur | Secondary | Unknown | |
| #110 | Exeggcute | PrimarySecondary | Unknown | |
| #111 | Exeggutor | PrimarySecondary | Unknown | |
| #089 | Gloom | PrimarySecondary | Unknown | |
| #072 | Hoppip | Primary | Unknown | |
| #265 | Ivysaur | Secondary | Unknown | |
| #074 | Jumpluff | Primary | Unknown | |
| #209 | Leafeon | Hidden | Unknown | |
| #088 | Oddish | PrimarySecondary | Unknown | |
| #073 | Skiploom | Primary | Unknown | |
| #109 | Sunflora | Primary | Unknown | |
| #108 | Sunkern | Primary | Unknown | |
| #201 | Tangela | Primary | Unknown | |
| #202 | Tangrowth | Primary | Unknown | |
| #266 | Venusaur | Secondary | Unknown | |
| #071 | Victreebel | PrimarySecondary | Unknown | |
| #090 | Vileplume | PrimarySecondary | Unknown | |
| #070 | Weepinbell | PrimarySecondary | Unknown |