Smog Dragon (5e Creature)
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Large dragon, chaotic neutral
Skills Perception +7
Hold Breath. The dragon can hold its breath for 1 hour.
Wakeful. While the dragon sleeps, at least one of its heads is awake.
Multiattack. The dragon makes three attacks with its bites.
Bites. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 20 (5d6 + 3) piercing damage.
Stench Breath (Recharge 5-6). The dragon exhales noxious fumes in a 30-foot cone which goes around corners. The area is heavily obscured. Each creature in that area, as well as any creature that starts its turn in the cloud or enters it for the first time on its turn, must succeed on a DC 15 Constitution saving throw or be poisoned for 1 minute. An affected creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Smog dragons are large, many-headed dragons that can expel a thick, black fog from their mouths. A smog dragon's thick hide is the colour of brackish water, and it is very resistant to heat. Most smog dragons live in swamps and fetid bogs, though they prefer to live near forests where prey is plentiful. They are hard to ambush in their sleep, as at least one of their many heads is always alert.