Does Divine Orb Work on Uniques?

This can only be used on magic, rare, or unique items. Only the values of affixes that have a range of values will be randomized. A Divine Orb will not change the tier of the affix; it will only re-roll within its current tier.

Can you divine orb a corrupted item Poe?

How to get these: Divine orbs are very rare drops from anywhere. Most common way to get Divine Orbs is to sell useless six-linked items to a vendor. Corrupting an item can make it six-linked, but since it is corrupted, it cannot be changed any more.

Where can I farm divine orb?

Divine Orb Farming Guide

The drop level of Divine Orb is 35 and it has a rare drop rate. You can get it by slain monsters, destroying chests, and opening Arcanist's Strongboxes.