| Icon |  |
| Name | Efficacious Toxin |
| Instance name | Efficacious Toxin |
| Description | You take 10% increased damage over time |
| Duration | 4s |
| Max instances | 1 |
| Is positive ailment | No |
| Show in debuffs | Yes |
| Effects | +10% increased Damage Over Time Taken |
| Deals damage | No |
| Is spell | No |
| Is melee | No |
| Is dot | No |
| Is curse | No |
| Spreads | No |