This mob is found in all three realms, but with three different names:
Hibernia: Crom Cruiach
In all three realms, the mob is the final boss in Chapter 3 of the champion quests.
For information about other Chapter 3 trophies, click here.
The trophy requires an etched aquamarine eye and extraordinary behemoth potion.
This mob and its trophy were introduced to the game on October 11, 2005 when Darkness Rising went live.
This trophy is on display in house 42, Caerwent, on Gaheris.