Hello, I have made an dungeon and in final encounter I would like to use my version of red dragon (lvl 7 solo) regarding abilities. I have only change its look and that it does necrotic damage instead of fire. To spice an encounter more I would like an special kind of fog where is his lair (he is immune) that does (this fog does not cover whole encounter area): Desperading fog: lvl ?? hazard Any creature starting it's turn in the fog is dazzed. My group consist's of 4 people so I think that such encounter will be suitable for them. What level would be OK for such a hazad ? I assume that in fight will dragon use it primary to avoid flanking because he would be forced to fight outside of it.