Combat, it's still part of the story.

The most crucial role of a Game Master is that of the storyteller. Yes, you need to keep track of gazillions of rules, and game metrics, and rolls, and statistics, etc. etc. If the story doesn't flow, the players will get bored; the discussion will turn to things happening in the real world. Before you know it, that immersive experience you spent weeks developing and writing will fade away, leaving nothing but almost empty pizza boxes and soda (or beer) cans.

The biggest threat to the immersive experience is combat. Yup, I know, that's supposed to be the exciting part. But I see many GMs, especially new ones who get bogged down in the numbers and forget to keep the story going. Remember, the thing that makes a great story is not the plot; it's the details.

Let me give you an example, Sports Broadcasters. Can you imagine watching golf or baseball with the TV volume turned off? I'd be asleep on the couch within 15 minutes. Now imagine listening to a baseball game on the radio, that thing we all used to have in our cars before smartphones and podcasts. You can't see the game, but a good sports broadcaster c