What is the best way to store a players variable?

Should I use a remote event? or is there a store to store the players variable in a server script. the script is in starter gui, in a gui. the code: I shortened the script but it's basically just a repeat of this

while true do
		script.Parent.Text = "Intermision"
		
		
		
		a = game.Lighting.Zombie:clone()
		a.Parent = game.Workspace
		a:makeJoints()
		wait(2.5)
		--Set 2
		
end