Bog Wyrm

Ancient dragons whose scales are as black as the deepest swamp waters, their forms blend perfectly with the fetid marshes they call home. These sadistic predators prefer to watch their prey suffer, often offering false hope before delivering their acidic breath attacks that dissolve flesh and bone.

Bite: piercing, melee 10 ft, +4 to hit, 2d10+7, 2d6+7, 2d8+7. Acid Breath: acid, 30-ft cone, save Con Tough, heavy damage, cooldown 3 rounds. Swamp Mastery: elemental, 30 ft, save Dex Quick, damage or condition, cooldown 2 rounds. Boss Actions.

Acid Immunity: endurance, immune to acid damage. Amphibious: aquatic, breathes air and water, swims at normal speed. Terrifying Majesty: aura, 10 ft, save Wis Mind, frightened while in aura [success: immune to this aura for 24 hours], aura ends if it can’t be seen. Mythic Resilience: limited uses, convert a failed save to success, cannot use while incapacitated. Senses: Night Vision (60 ft), Keen Smell.