Cripple is a tier 1 offense mastery with 1 rank.
- Empowers Exhaust:
- Reduce the target's Armor and Magic Resistance by 10.
- Increases the spell's duration by 0.5 seconds.
Armor and magic reduction reduced
ARMOR AND MAGIC RESISTANCE REDUCTION :  ⇒ 10
June 26, 2009 Patch
EFFECT Improves your Exhaust spell to also reduce the target's armor and magic resistance by 25 for the duration, and increases its duration by 0.5 seconds.