Throne & Liberty: How to Unlock Calanthia Raid | Raid Queue
To access the Altar of Calanthia raid, you should first finish the missions labeled as “Two Wings of Sylaveth I” and “Two Wings of Sylaveth II” within your in-game Codex, which can be found under the Extra tab. It’s important to note that you must complete part 1 before moving on to part 2. The game will guide you through the necessary steps to finish these tasks once you begin tracking them from the Codex.