It is activated for 60 minutes and has a cooldown time of 60 minutes. Also, as with all auras, if the account using it is logged out while the aura is activated, the timer will continue to run out. The standard poison purge, greater poison purge and master poison purge auras are required before buying this aura. Hence the cumulative price is 2,750 + 12,500 + 32,500 + 51,500 = 99,250 Loyalty points.