At-will, standard action, touch, DC 23+; you touch a creature and attempt to separate a curse, enchantment, or other magical affliction from its soul. This is the most demanding application of Purgatio, as you are separating magical effects that have bonded to the target's very essence.
Affliction
DC
Minor enchantment
23
Serious curse
25
Ancient curse
27
Divine curse
29+
If the curse has a physical focus or anchor (a cursed item, a brand, etc), you can instead target the focus at -4 DC.
On a failed check by 5 or more, the curse lashes back at you; you must make a Wisdom save at the curse's DC or suffer a lesser version of the affliction for 24 hours.