B:SR Core Setting
Innate Spellcasting. The Perishing's innate spellcasting ability is Intelligence (spell save DC 18). It can innately cast spells requiring no components.
Legendary Resistance (3/Day). If a Perishing fails a saving throw, it can choose to succeed instead. Immediate Regeneration. The Perishing regains up to 3d4 hit points immediately after every successful attack against it, but no more than the damage of the attack. Slow Regeneration. The Perishing regains 1 hit point at the beginning of its turn. Magic Resistance. The Perishing have advantage on saving throws against spells and other magical effects. Fear Aura. Any creature that starts its turn within 30 feet of a Perishing must make a DC 18 Wisdom saving throw. On a failed save, the creature is frightened until the start of its next turn. If a creature's saving throw is successful, the creature is immune to this particular Perishing's Fear Aura for the next 24 hours. The Perishing can choose not to affect specific creatures or groups of creatures. Alert. A Perishing cannot be surprised by anything within the radius of its Environment Sense (60 ft.). Hovering. The Perishing can move through air by willpower alone. This ability works even in antimagic areas. They can also hover through the Braythian Void unharmed. Individual abilities. Perishing are highly individualistic, and some of them have learned things that none of the other Perishing know. In case you choose to give additional abilities to a Perishing, adjust the Challenge Rating accordingly.
Multiattack. A Perishing makes two attacks, one with each claw. It can choose which type of attack it delivers with each strike. All attacks made by a Perishing are considered magical. Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 16 (3d8+3) 3d8+3 slashing damage. Rotting Touch. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. On a hit, the target must succeed on a DC 18 Constitution saving throw or be reduced to 0 hit points. A creature affected by a Rotting Touch has to make a death saving throw immediately. On a failure, the creature's body rots away into a pile of dust and goo within seconds. Armor or clothes do not protect from the effects of the Rotting Touch. Braythian Champions are immune to this effect. Rotten Communication. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. On a hit, the target must succeed on a DC 18 Constitution saving throw, or the touched limb (or other body part) instantly whithers and dies, effectively crippling the target. Nothing short of a wish spell can cure this condition. No matter the result of the saving throw, the Perishing can telepathically communicate with a target it succeeded to touch. Their "voice" sounds like rolling thunder mixed with dark, guttural sounds and thousands of far-away whispers that somehow make sense in the target's mind. Usually, the Perishing sends a single message or asks a single question. But in theory, the creature could lead a complete conversation once the telepathic contact is established and the touch is not interrupted. Braythian Champions are immune to the effects, but the telepathic communication can still be established that way.
A Perishing can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. A Perishing regains spent legendary actions at the start of their turn.
The ground touched by a Perishing instantly turns dark, often pitch black, in a 5ft. radius, and all plants, fungi etc. die. As the creature travels, it leaves a trail of death and darkness behind. The effect does not discern between the type of ground - soil, rock and even water is affected the same. Water (or any other liquids) tainted like that become sluggish and thick, and only slowly mix with surrounding liquids. Tainted ground is incapable of hosting any kind of life. For nature to reclaim such areas, healing or curing spells of at least second level are needed. Casting spells like Lesser Restoration or Mass Healing Word regenerate a five-foot cubic area. Spells of 5th level and higher add another five feet for every level above four. The caster has to succeed on a Wisdom saving throw against DC 15, or the spell is wasted without any effect. Casting a holy aura using the Hallow spell works similar, but the caster has advantage on the Wisdom saving throw. An area that is not restored slowly taints its surroundings. Thirty days after the Perishing touched the ground, the flora in a ten foot area around the tainted ground turns dark, twisted and highly poisonous. Every thirty days after, the area gradually grows by ten feet. After fifty to hundred feet (150-300 days), the growth stops. From one day to the next, the entire flora in the affected zone dies. Living or undead creatures within the area suffer one point of damage every turn. These secondary taintings can be undone the same way a directly affected area can be regenerated. Variations of this effect have been observed, where a Perishing created a corrupted area instead of a dead one.