Idea Stone Sword PvP

My idea is that everyone would spawn in an enclosed map, like for onein or the snowball game, but way smaller, with a stone sword and a resistance potion for the first 5 seconds. After 5 seconds, the game would begin. The objective in this game would be to kill as many people as possible without dying. If you killed someone, that would count as 1 point, if you die, you would lose one point. Every 20 seconds, the people who have less than 3 points are killed and teleported out of the round. Everyone's score would reset, and they would continue fighting. There would be a 2:30 minute mark in case the game went long. The fun thing about this is that instead of a normal PvP round where everyone runs away from their attacker, this would force people to fight it out and result in a quick, fun minigame.