May poison the foe on contact.
| #253 | Croagunk | Hidden | Unknown | |
| #321 | Grimer | Hidden | Unknown | |
| #321 | Grimer(alolan) | Primary | Unknown | |
| #322 | Muk | Hidden | Unknown | |
| #322 | Muk(alolan) | Primary | Unknown | |
| #044 | Seismitoad | Secondary | Unknown | |
| #397 | Sneasler | Hidden | Unknown | |
| #254 | Toxicroak | Hidden | Unknown |