The Slayer in Galadon has some weird features.

First, his wander-prog goes off while he's fighting, meaning he just walks out of battle. I can see how that might be by design. But...

When he'd already walked away I try to wrath him and se the wrath-curse echo as well as his health (even though he is no longer in the same room as me). I didn't see the wrath do any actual damage, though that echo might have gone off in the room he moved to.