2010-04-30, 11:32 PM
The way thorns works is that it applies to passive critical, and stun mastery only applies when the monster is stunned. So on unstunned monsters, it would be 35% chance for 175% critical, and on stunned monsters, stun mastery overrides thorns for 60% chance for 160%. Maybe it's just wonky for stuns, or maybe whoever wrote that typoed or didn't test it properly.