Minecraft Dungeons:Ancient

The term ancient refers to formidable and powerful boss-like mobs exclusive to ancient hunts.

Ancient mobs
Ancient mobs are gold glowing mobs, companioned by a group of enchanted minion mobs, possessing their own title name, and themed arena accessed through Hunt Doors. Ancients can possess over five enchantments simultaneously, some that would otherwise be hero-exclusive, such as, and some only available to ancients. These mobs spawn once the hero has interacted with a button within the ancient's arena. Upon the ancient's defeat, a Gilded item, within the ancient's loot pool, of any is dropped as a reward.

26 different ancient mobs exist within  that each minimum rune requirements, satisfied by offering and sacrificing a combination of equipment possessing the runes required. Multiple ancient mobs can be fulfilled by a single overall offer Sacrificing, in addition to equipment, increases the ratio of ancient mobs occupying hunt doors rather than gold rooms.

10 Ancient mobs are locked to DLC due to their equipment drops:
 * Thundering Growth requires Jungle Awakens
 * Frostwarden requires Creeping Winter
 * Windbeard requires Howling Peaks
 * The Unending and Unstoppable Tusk requires Flames of the Nether
 * Vengeful Mariner and Abyssal Eye requires Hidden Depths
 * Scuttling Torment, The Swarm and  Watcher of The End requires Echoing Void