Titan (Unreal) was added in patch 5.4 of the Shadowbringers expansion.
Titan (Unreal) becomes available at level 80 as part of the “Fantastic Mr. Faux” quest, which is given by Painfully Ishgardian Man – Idyllshire (X:7, Y:5).
The trial has a minimum ilevel of 430 to enter and rewards you with:
Allagan Tomestone of Allegory: 20
Allagan Tomestone of Revelation: 10