Cleansed Corruption
Blizzard updates targeted Corruption to work for previously cleansed items, and now, not just new ones
It can be a little hard to keep up with changes to the targeted Corruption system Blizzard added this week, but this particular change is definitely worth being aware of -- previously, it was impossible for the system to allow you to cleanse a previously Corrupted item and then add the Preserved Contaminant of your choice back to that item.
