It's a fantasy role-playing game.

DM: You are Scanlan Shorthalt, a gnome bard . You are the member of the famous group of adventurers. Previously, The first stab hits, catching it off guard, but Percy's inexperience with the weapon and the pain in his throat allow the creature to grab the blade and pull Percy towards itself. Vex fires again at the vampire, the arrow sinking deep into its side.
DM: It creates an additional dart per spell level, so it's initially three, and it's three levels higher, it gets to six.
Player: Oh, so it doesn't increase it three darts per level. It's one. So if I do a level four, I get two darts for each fucker.
DM: Essentially, yeah. I'd be 6d4 plus six.
Player: 6d4 plus six. Okay, so 2d4 plus two for each guy. I'll do that.
DM: And they hit automatically. There is no roll for it.
Player: Great. And it can't hit my friends or anything, right? I mean, they're Magic Missiles.
DM: No, they unerringly hit. They're like homing arcane projectiles.
Player: Do I have to roll this six times or just two?
DM: Six times. I know.
Player: So, three plus two for the first guy.
DM: Okay, so five against him.
Player: Ten for the second guy.
DM: All righty.
Player: And seven for the third guy.
DM: All righty. So as you get up--
