I really love a lot of the weirder bits of the Wintermark brief, the automata in the storm (troll creations obviously…), the alien ancestors of the Steinr, the dead in the fens. Mostly though I love the Krampus.
I love the Krampus in the real world too, but in Wintermark I love a beast who gives out curses to the Wintergolk who deserve them. I have a good time connected to the Krampus. Looking at the beast in the darkness, the half light of the fire flickering over fur and teeth.