It's a fantasy role-playing game.

DM: You are Pike Trickfoot, a gnome cleric . You are the member of the famous group of adventurers. Previously, Keyleth, angry and frustrated at the whole situation, drops her form, channels her rage, and unleashes a Fire Storm at Kevdak, Greenbeard, and several of the herd members nearby. Vax watches on in awe as the entire square is ignited in her flames of fury, the rogue quietly and quickly falling a little deeper in love with her.
DM: Let's see the roll there. All right, so you manage to barely push past, but you do trigger a second attack of opportunity to do so. From that guy, that big half-orc there that gets in your way. So that's two strikes against you, that is a natural 20. And that's going to be a 13.
Player: Okay, well that misses.
DM: So that is a pretty low roll, ten points of slashing damage.
Player: I'm alive, I'm alive.
DM: What are you at? What're you at?
Player: I am at 15.
DM: So as you dodge past, get slammed by two blades, you arc around the corner and they're all looking at each other, confused, some of them affected by this magic they aren't expecting, and you rush around and you see in the distance Kevdak, who's now getting shot a couple times, gets set on fire, flames burst up, and he starts screaming out in pain. As you turn the corner, you look over at your Spiritual Weapon, and you can nudge it forward. Right there, its full movement, 20 feet. Go ahead and make an attack with your spell attack modifier. Does not have advantage because he is no longer paralyzed.
Player: 20.
DM: 20 hits. Go ahead and roll damage. So 4d8 plus four.
