Mythic Monster (5e)
From Dungeons and Dragons Wiki
|Mythic monsters are legendary monsters that have features that distinguish them: Mythic Traits and Actions. These traits and actions are optional, used at the GM's descression. These traits and actions raise the CR of the encounter. Often there will be text to read after the triggering event in a section labled "As a Mythic Encounter".|||
Mythic Traits and Actions
These traits only become available after a triggering circumstance has occurred.