http://www.gw2db.com/items/61745-superior-sigil-of-purity
Sigil says: 60% Chance on Critical: Remove a Condition
I put this on my mainhand weapon 2 days ago, and with 54% crit chance I have never seen it work. There have been many WvW instances where I will have a bleed or cripple on me while attacking an enemy, critting them almost every hit, and I will never see a condition drop from me. I know 60% chance is not 100%…but I’m pretty sure this is bugged since it hasn’t worked in 2 days of play time.