Merciless
The Pokémon's attacks become critical hits if the target is poisoned.
Level-Up
The following Pokémon can equip this ability after reaching a certain level.| # | Pokémon | Type | Level | |
|---|---|---|---|---|
| 406 |  |
Archigloom | 
 |
60 |
| 41 |  |
Mareanie | 
 |
1 |
| 42 |  |
Toxapex |
|
1 |
| 444 |  |
Carcinodjinn |
 |
55 |
Natural Ability
The following Pokémon can have this ability when you find them in the wild.| # | Pokémon | Type | |
|---|---|---|---|
| 41 | |
Mareanie |
|
| 42 | |
Toxapex |
|
Hidden Ability
The following Pokémon can have this ability as their hidden ability.| # | Pokémon | Type | |
|---|---|---|---|
Tutored Ability
The following Pokémon can be taught this ability.| # | Pokémon | Type | |
|---|---|---|---|
| 348 |  |
Fallsheer |
 |
| 160 |  |
Spinarak | 
|
| 161 |  |
Ariados |
|
| 408 |  |
Gravelisk | 
|
| 413 |  |
Velokota | 
|
| 414 |  |
Utabazai |
|
| 406 | |
Archigloom |
|
| 41 | |
Mareanie |
|
| 42 | |
Toxapex |
|
| 442 |  |
Toxel | 
|
| 443 |  |
Toxtricity |
|
| 444 | |
Carcinodjinn |
|
| 427 |  |
Komodor | 
|
| 357 |  |
Cacturne | 
|
| 170 |  |
Chinchou |
|
| 171 |  |
Lanturn |
|
| 341 |  |
Pinsir | |
| 360 |  |
Glimmet |
|
| 361 |  |
Glimmora |
|
| ??? |  |
Anphage |
|
| ??? |  |
Tusgoyf |
|
| ??? |  |
Llurscayf |
|