The Demonic Lanner, pictured in-game (Image via FFXIV Wiki) Demonic Lanner: The Demonic Lanner mount is obtained as a rare drop during the “Containment Bay Z1T9 (Extreme)” trial.

Unlock Containment Bay Z1T9 (Extreme) in FFXIV to obtain unique weapons, ... with the chance that the unique mount’s Demonic Lanner Whistle will drop as well. However, this is entirely random, ...

Demonic Lanner. A single-seater mount, ... FFXIV mounts - Raid, Trial, Dungeon, and FATE completion. These mounts will prove to onlookers that you are not to be messed with.