Dauntless

The Chronovore is a unique enemy in Dauntless, being the only one that is summoned using a consumable. On the hunting ground island The Paradox Breaks, enemies will be Elder or Primal in nature, and defeating them will drop a Chrono-Stone which is used to start the Temporal Anomaly island event. At the end of this event, The Chronovore will spawn. Complete this event by defeating The Chronovore to unlock this achievement. You will need to complete this multiple times to earn enough parts to craft the armor piece needed for Timeless Fashion (20G) so stick around and join whenever someone starts this event, and defeat all the enemies that spawn around the island to earn more stones so you can start it again yourself as well.