[HELP] How do I make this into a killaura

So I've got this script:-

_G.killaura = true
while _G.killaura == true do
    local args = {[1] = game:GetService("Players").Naat_Jacer.Character.Humanoid,[2] = Vector3.new(-531.67926025391, 
    38.672958374023, -557.19390869141)}
    game:GetService("Players").LocalPlayer.Character.Katana.Remotes.Hit:FireServer(unpack(args))
    wait()
end

What I wanna do is kill the player "Naat_Jacer" from anywhere I want. The problem is that this script DOES work but only when I'm near Naat_Jacer and only when he's standing still. I wanna make it so I can attack him from anywhere and anytime, whether he's moving or not. Also he has to be near the Vector3 cords if he's far away from those it doesn't work.

Game: https://www.roblox.com/games/5952445986/Dynasty-Battlegrounds-BETA

I started making scripts 2 days ago sooooooooooooooooo

yea