Mythic Eberron

First introduced in Mythic Odyssey's of Theros, a Mythic Encounter is an optional rule you can apply to a creature which increases the difficulty. This takes the form of a Mythic Trait, which triggers most often on reducing the creature to 0 hit points. After which, it transforms, musters its strength, or exposes a new objective—extending the fight and unlocking new powers and abilities for the creature. When Mythic Odyssey's of Theros launched, we released Mythic Encounters - a collection of 36 CR 21+ monsters from the official D&D books updated with as a Mythic Encounter, complete with lore, art, and rewards.