Duke might ping for "abnormal flow". He has a lot of available mana/aer, and hasn't figured out how to dump most of it. Mostly because he regains it at a ridiculously fast rate.

He's mostly aligned with fire and unaligned, and due to Aer being what he's most used to, his "personal mana" or whatever might feel particularly raw. (going by the game binding elements to aer to create mana-)