Realm First! Sinestra is a Feat of Strength for being the first guild group on the realm to defeat Sinestra in the Bastion of Twilight. It can be completed on 10- or 25-player mode.
Like other realm firsts, there will be a server-wide notification when this achievement is completed. However, it is awarded as a guild, rather than individual, achievement.
Patch changes[]
- Patch 4.0.3a (2010-11-23): Added.