Normally I would agree with but in the case of Holmgang and Living Dead, I don't. These two abilities do absolutely nothing if the user doesn't hit 0 HP, which means that in order for it to be useful you have to use it as a panic button, or have prior knowledge of the content and discuss with your team before the run. Something you don't really get to do in DF, and is honestly a waste of time for dungeon content in general.