conjuration poison 

Traditions arcane, primal

Cast [>>] somatic, verbal

Range 120 feet; Area 20-foot burst

Saving Throw Fortitude; Duration 1 minute

You create a cloud of putrid mist in the area. The cloud functions as obscuring mist except it sickens creatures that end their turns within the cloud. (The concealed condition is not a poison effect.)

Critical Success The creature is unaffected.Success The creature is sickened 1.Failure The creature is sickened 1 and slowed 1 while in the cloud.Critical Failure The creature is sickened 2 and slowed 1 until it leaves the cloud.

Core Rulebook, page 373.