player gives me nil value?

So i am making a game but cant get it to work with this script i wrote and dont know why it gives me an nil value.

player = game.Players.LocalPlayer

if not player.leaderstats.mageClass == true then
	function Touched()
	local humanoid = Touched.Parent:findFirstChild("Humanoid")
	if (humanoid ~=nil) then
		humanoid.Health = 0 
	end
	end
elseif player.leaderstats.mageClass == true then
	local humanoid = Touched.Parent:findFirstChild("Humanoid")
	if (humanoid ~=nil) then
		humanoid.Health = 100 
	end
	end
	script.Parent.Touched:connect(Touched)

11:18:22.691 - Workspace.Model.Part.Script:3: attempt to index global 'player' (a nil value)
11:18:22.691 - Stack Begin
11:18:22.691 - Script 'Workspace.Model.Part.Script', Line 3

Try

Player = game:GetService("Players").LocalPlayer

Also, I have called on the LocalPlayer within a server script several times, it is possible.