Poison

The odorous purple of poison wards off predators.

Poison is one of the three elements of hazard. It is often found in jars or vials with pictures of skulls on them, or berries with pictures of seals on them. It is a Class K illness, making it not as dangerous as the other two elements, but in exchange it is far more painful and slow-acting. Kind of under the weather, like you've got the flu.