Several vampiric powers apply Vampiric Curse. The curse stores the enemy’s soul when they die, and you can release those souls to do damage when casting defensive / macabre / agility skills. I get all that.
However, the “Prey on the Weak” vampiric power says, “Enemies are vulnerable while affected by Vampiric Curse from your other Vampiric Powers”.
I can’t seem to find a duration listed anywhere for Vampiric Curse, though. If I apply the curse to a boss, is he then vulnerable forever? Does the curse eventually wear off?