Referee Skills Review 3: Additive Damage

the Referee Skills Review is about playtesting soft skills in the same way that rules and modules get playtested. My aim is not to tutorialise, but to review based on actual experience from play. Relevant links to educational content will be linked where I can find them. Quick one. First, I feel like it's worth talking a little bit more about why I'm doing this little series. The first reason is that I think soft GMing skills are far, far, more vital to a fun session than the system or content in use, and they deserve to be discussed more. The second reason is that when I search online for solutions to GMing problems, I often find a surplus of ideas but a lack of info on whether they actually work. Thus, an effort to not only catalogue referee skills, but also to provide meaningful insight on what's good and what isn't. How I used itI suck at maths. So when my players start hitting something, I jot down its name and its total HP beside it. Each point of damage gets tallied. When the…