ralfkorrek: The game is really fun and I like it so far - but right now I am at a point, where something doesn't quite fit into the "puzzle" theme (hopefully without leaving a spoiler): random damage? This just killed two of my four vikings at 1/3 of the mission. Either I am really unlucky, or that is how it goes from there on... oh well.
renew: Could you have chosen the Blast skill on Thork? This has a small chance to damage all monsters around a monster that Thork has killed. This can possibly result in triggering a monster that hits one of your vikings.
No, Thork has not this skill. What I meant was a story level with a modifier "Anomaly", which has a chance to damage a random field every move. Watching the skills is fine and (after sending a viking to Valhalla sometimes) I learn what to do and what not, but this random thing puzzles me.