CR 21 Monsters
31 D&D 5e monsters at challenge rating 21. Build encounters by totalling XP from this CR bucket against your party's adventuring-day budget — see the 2024 DMG's encounter rules for the new tighter formula.
Alquam, Demon Lord of Night Fiend (Demon)Ancient Black Dragon Dragon (Chromatic)Ancient Copper Dragon Dragon (Metallic)Ancient Emerald Dragon Dragon (Gem)Ancient Moonstone Dragon DragonAncient Prismatic Dragon DragonAnkou Soul Herald DragonArbeyach Fiend (Devil)Arch-hag FeyArch-hag* FeyAstral Dreadnought MonstrosityAvatar of Shoth AberrationCoral Queen FeyDemilich (Variant) UndeadDread Examiner AberrationGargantua AberrationGugalanna CelestialHutijin Fiend (Devil)Lich UndeadMoloch Fiend (Devil)Molydeus Fiend (Demon)Molydeus (Summoner Variant) Fiend (Demon)Monkey King CelestialMountain Giant GiantPrimordial Matriarch ElementalQazyldrath DragonQueen of Night and Magic FeyRainforest King FeyRunic Colossus ConstructShadow of Death CelestialSolar Celestial