Main Article: Necronomicon
- Available for level 3 Necronomicon Archers only.
- Applies a basic dispel on the target upon cast.
- Purge first applies the dispel, then the slow.
- The slow decreases in 0.8 second intervals, so it slows for 100%/80%/60%/40%/20%, going one step down every 0.8 seconds.
- Can be cast on and fully affect invulnerable units.
- Fully stacks with other sources of movement and attack speed, except for other Archer Auras.
- The aura's buff lingers for 0.5 seconds.