This is the list of available monsters from @The Eternal Menagerie that combatants can fight on @The Arena Floor.
Tier: 1 "The Proving Gauntlet" CR 1-4 {
@Black Pudding, @Displacer Beast, @Drow Warrior , @Flail Snail , @Gelatinous Cube , @Gnoll Archer , @Gnoll Hunter , @Gnoll Warrior, @Imp , @Minotaur , @Mummy, @Nilbog, @Ogre , @Owlbear , @Quasit , @Red Knifeling , @Warg
}
Tier: 2 "The Clash of Realms" CR 5-8 {
@Armanite, @Barlgura , @Blue Slaad , @Canada Goose, Terror of the Realms , @Dolorae , @Drow Mage , @Echo of Demogorgon , @Githyanki Knight , @Gladiator , @Gluttonous Maw , @Gorgon, @Gralnok, the Chainbreaker Ogre , @Green Slaad , @Hag , @Hezrou , @Hill Giant @Hollowfang Stalker , @King Croakus @Medusa @Mind Flayer , @Red Slaad , @Spawn of Kyuss , @Star Spawn , @Sylith, the Venomwing Manticore , @Tanarukk , @The Ashen Hound , @The Bloomed Knight , @Tlacatecolo , @Troll , @Vorpal Rabbit , @Vrock
}
Tier: 3 "The Legends Bracket" CR 9-14 {
@Ancient Bronze Dragon , @Arch-Hag, @Ashen Colossus , @Balrog , @Behir , @Beholder , @Cloud Giant , @Death Slaad , @Gene-Forged Super Soldier , @Glabrezu , @Gray Slaad , @Harlequin Behemoth , @Lich , @Maw of Yeenoghu , @Sphinx , @Tharvog, the Ironhide Behemoth , @The Bone Harvester , @The Seer of Ashen Doom , @Xytheris, the Storm Serpent
}
Tier: 4 "The Ascendant Trials" CR 15-20 {
@Adult Obsidian Dragon , @Ancient Emerald Dragon , @Ancient Sapphire Dragon , @Balor , @Chrysalith, the Mind Eater , @Daimao , @Ghorrax, the Arena Butcher , @Hertilod , @Kaelthar, the Shattered Colossus , @Noctyra, the Hope-Devouring Spider , @Seraphiel, the Fallen Flame , @Stonebound Guardian , @Storm Giant , @Thalyth, Mirror of a Thousand Faces , @Tharuun, Herald of the Void Choir , @The Painted Ronin , @The Tyrant Pickle , @Velithra , @Vorgrath, the Abyssal Devourer
}
Tier: 5 "The Eternal Crown" CR 21-30 {
@Ancient Amethyst Dragon , @Ancient Diamond Dragon , @Ancient Gold Dragon, @Ancient Red Dragon , @Ancient Ruby Dragon , @Ancient Silver Dragon , @Aphoros, Arbiter of Silence , @Astral Dreadnought , @Chalyth, Warden of the Ashen Gate , @Demogorgon , @Devourer of the Unworthy , @Eclipsera , @Elder Brain Dragon , @Empyrean , @Marut , @Myrrakar, the Soul Devourer , @Nytheris, the Frozen Cataclysm , @Oblivoros, Eater of Tomorrows , @Ozyth, the Infinite Maw , @Solaris Rex, the Sun Tyrant , @Tarrasque , @The Arena’s Final Judge , @The Eternity Serpent , @The Herald of Annihilation , @The Scarlet King , @Veyora, the Stormborn Leviathan , @Zeroth, the Living Apocalypse , @Zorvath, the Crown-Eater
}