Xulgaths have stench auras with the olfactory trait. Any suggestions on how to handle efforts by the PCs to avoid the aura by plugging their noses with wax or something similar? If they took such a step, would you allow characters to completely avoid the aura, give them a +1 or +2 status bonus to their save against the aura, or decide that the aura still has its normal effect?
If there's a bonus to saves or avoidance of the aura entirely, should there be some drawback to counterbalance the benefit? For example, I was thinking that any character plugging their nose might gained the Fatigued condition during combat because they can't take in as much oxygen while exerting themselves. Here's my initial thought on a mechanic:
Any character taking steps to plug or cover their nose gains a +2 status bonus to Fortitude saves against olfactory effects, but is Fatigued during combat due to reduced airflow.
I am certain that my players will try to plug their noses or cover their noses/mouths with a wet rag or do something similar once they start encountering xulgaths. Suggestions on whether my suggested approach makes sense and is balanced, or recommendations for alternative approaches, would be appreciated.