Realm First! Obsidian Slayer is a Feat of Strength for being the first raiders on the realm to defeat in the 25-player version of the Obsidian Sanctum. Like other realm firsts, there will be a server-wide notification when this achievement is completed.
This achievement rewards the title Obsidian Slayer.
The title is formatted like this:
- Obsidian Slayer <name>
- / Patch 3.0.2 (14-Oct-2008): Added.