Rune of Koro
The Rune of Koro is one of the runes of warding and can be found inside Molten Core, guarded by Sulfuron Harbinger. It, together with the other runes in Molten Core, must be deactivated ("doused") in order to summon Majordomo Executus. The runes are deactivated by killing the bosses that guard them.
- Patch 3.0.8 (2009-01-20): Now doused automatically upon Sulfuron Harbinger's death.