Eno Rune shenanigans continue

Using Eno rune and In Plain View to stop getting blown up by Mana Bomb, ironically I’ve yet to find a Djinn to see if it works, but enemies are still defending.

My creatures are all invisible, if that helps.

Is it possible that those creatures just had absolutely nothing else they could do other than defend? If they’re scorned (can’t attack), and don’t have enough mana or simply can’t cast a spell for any reason, they’ll default to defending regardless of their restrictions.

I figured they’d be coded with a “do literally nothing” action when an Eno rune was equipped.