When this item is held by a Pokιmon, at the end of every turn, if the holder is not Poisoned, it becomes badly Poisoned.
So this is bad and harm you .
When this item is held by a Pokιmon, at the end of every turn, if the holder is not Burned it becomes Burned.
Also this harms you .
Damages holder each turn by 12.5% of its maximum HP each turn. Damages attackers using contact moves by 12.5% of their maximum HP .
Harms you .
Cuts the holder's Speed by 50%; negates the Levitate ability from holder and makes Flying-type holders susceptible to Ground-type moves, Arena Trap, Spikes, and Toxic Spikes.
The holder loses its type immunities.
This is devastating.