My group is on hiatus for the end of summer currently, but I've been trying to strategize how to handle this kill Koth scenario I'm about to go into. He sure has high HP and defense for lowly zombies to chip away at. I was planning to use Barghests to howl at him for some more damage, but a thread on BGG says that isn't viable because apparently only zombies can hurt him now (the rules say only zombies can attack him, but somehow this means no howling either.) Also out is my plan of blasting party members near him during the escape, since that's not directly attacking him and it seems the Fire Breath also doesn't work.
I saw another thread here recommending a Word of Misery / Frenzy combo. Would that even work? Word of Misery isn't a zombie, so I'm not sure it would affect Koth. What about Pit Trap then? It's not a zombie either, but if Word of Misery works... Exploding Runes?