Planar Effects
D&D 2024 hazard: Planar Effects. Source: Dungeon Master's Guide (2024). hazard type Environmental Hazard Certain planes of existence-and areas on the Material Plane affected by them-have supernatural effects on creatures within them. Several examples are presented below. See chapter 6 for more information about the planes of existence. Acheronian Bloodlust The plane of Acheron rewards a creature for harming other creatures by imbuing it with the strength to keep fighting. While in Acheron or a region under its influence, a creature gains Temporary Hit Points equal to half its Hit Point maximum whenever it reduces another creature to 0 Hit Points. Arcadian Vitality On the plane of Arcadia and in regions where its influence is felt, creatures benefit from supernatural vitality, which grants them Immunity the Frightened and Poisoned conditions. Blessed Beneficence On the plane of Mount Celestia and in regions where its influence is felt, creatures are blessed by the pervasive beneficence of the plane. Creatures other than Fiends and Undead gain the benefit of the Bless spell as long as they remain in an area of blessed beneficence. In addition, such a creature that finishes a Long Rest in the area gains the benefit of a Lesser Restoration spell. Gehennan Cruelty On the plane of Gehenna and in regions where its influence is felt, creatures are driven to loathe helping one another. Whenever a creature subject to Gehennan cruelty casts a spell, including a spell that restores Hit Points or removes a condition other than Invisible, the caster must succeed on a 10 Charisma saving throw, or the spell fails and is wasted. Winds of Pandemonium The winds of Pandemonium are common in Pandemonium and regions where its influence is felt, including parts of the Underdark. A creature makes a 10 Wisdom saving throw after each hour spent among the howling winds. On a failed save, the creature gains 1 Exhaustion level. The winds can't increase a creature's Exhaustion level above 3....