Flameforged destroyers were aggroing on me, I attack to around 50% health, then they run away and regaining full health as if evading, but does not say evading. Not all of them do this.
If I try to use the anima farshot too quickly a second time after doing it once on a Construct Commander, it says target is friendly. Edit: I also believe I never had to use this ability twice on a commander in past assaults.