Remote Events/Functions or Regular scripts for my tool to be most efficient?

I have been working on a magic local script, and I realized I'd have to use remote functions/events for it to be visible to others. I'm not sure whether to convert it to a regular script or have it be local, I also heard using remote functions/events use bandwidth? Sorry if I'm not making too much sense, I'm fairly new to scripting.

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local enabled = true

mouse.KeyDown:connect(function(key)
	if not enabled then return end
	if key == "e" then
		local projectile = Instance.new("Part")
		projectile.Size = Vector3.new(2,11,2)
		projectile.BrickColor = BrickColor.new("Pastel Blue")
		projectile.CanCollide = false
		local projectileMesh= Instance.new("SpecialMesh", projectile)
		projectileMesh.MeshId = "rbxassetid://3467593774"
		projectileMesh.Scale = Vector3.new(1,0.8,1)
		local projectileEffect = Instance.new("Smoke", projectile)
		local projectileVelo = Instance.new("BodyVelocity", projectile)
		projectileVelo.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
		projectile.CFrame = CFrame.new(player.Character.Torso.Position)
		projectileVelo.Velocity = player.Character.Torso.CFrame.lookVector * 150
		local damage = script.damage:Clone()
		damage.Parent = projectile
		projectile.Parent = workspace
		game.Debris:AddItem(projectile, 1.5)
		enabled = false
		wait(2)
		enabled = true
	end
end)