Every spellcaster has a unique style, and this spell reveals it
Divination
Action: Standard
Components: V,S
Spell Lists: Arcane
Levels: 4
Unique Signature allows a wizard to see the magical signature behind an active spell or enchantment. The magical signature can reveal a lot of things, such as who or what casted the spell in the first place. To counter this spell, an illusion spell can be used to either mask the signature or show another one entirely. To see if the illusion spell succeeds at fooling the mage, proceed with a DC check. The DC of the illusion against a DC check for Unique Signature.