The Javelin of Lightning

You're up on top of the Escala. Like near the altar where the various priests are. They're not all like grouped up in one place, they're around the altar at different positions. So if I get in between two of them and then I throw my javelin at the other pair, it would hit all four. Forming a line five feet wide that extends out from you. It says you have to speak the javelin's command word. What's its command word? Boom. And I'll attack it recklessly. On a hit the target takes damage from the Javelin plus 46 damage. Everyone else on the way saves to see if they don't