This item is created with Inscription (430); discovered through .
- Patch 5.0.4 (28 August 2012): Changed from Increases the bonus to your damage while Killing Spree is active by an additional 10%. No longer a prime glyph.
- Patch 4.0.3 (15-Nov-2010): Changed from Reduces the cooldown on Killing Spree by 45 sec.
- Patch 3.1.0 (14-Apr-2009): Added.