Explains
If we switch to spectator mode and tap on a Warden, we can see... what it sees... That's where the problem lies: it sees without eyes. So why not give it some eyes?

Add eyes for the Warden. Why ? I don't know.
If we switch to spectator mode and tap on a Warden, we can see... what it sees... That's where the problem lies: it sees without eyes. So why not give it some eyes?