For 1 Action, you can roll a Perception check against a character’s DC, and on a Critical Success (you exceed the DC by 10, or roll a natural 20), you are given their full list of Elemental Affinities.
The DC for Scanning is the target's AC + their Spirit stat.
On a Success, you gain information about only one of their affinities which you didn’t know before. The element will need to be one that you are familiar with channelling: for example, if you are familiar with a Cold spell, you could ask the GM about their Cold affinity.
For each Failure, you gain a -1 penalty to these checks, and a -2 penalty on a Critical Failure. These will stack, until you rest, or succeed a Scan check.
Misidentifying
On a Critical Failure, you will misidentify the enemy’s affinities. Specifically on rolling a natural 1, every one of the affinities will be completely inaccurate.