I attacked a Seraph and got a message that I got damaged by their aura (Clockwork Cloud) for 1 damage, but did not actually take damage. Had 4 impact soak, and the Seraph was level 24, if that matters (damage soaked to zero?). My Character ID = 1705.
EDIT: I think it may have to do with my character regenerating HP for some reason. I got attacked by an Aethersprite but I healed back to full after killing it.