evil

mainClass = "BasePart" --The type of object you want to screw with
mainObject = workspace --The base parent, all descendants will get rekt
function lighting()
	local li = game:GetService("Lighting")
	--Do something with lighting
	li.TimeOfDay = 0
	li.Ambient = Color3.new(0,0,0)
	li.OutdoorAmbient = Color3.new(0,0,0)
	li.FogEnd = 100
	li.FogColor = Color3.new(0,0,0)
end
function handle(p)
	wait()
	--What you want to do to the things found
	p.BrickColor = BrickColor.new("Really black")
	local f = Instance.new("Fire",p)
	local sb = Instance.new("SelectionBox",p)
	local sm = Instance.new("Smoke",p)
	local sp = Instance.new("Sparkles",p)
	sb.SurfaceColor3 = Color3.new(1,0,0)
	sb.LineThickness = 1
	sb.Color3 = Color3.new(1,0,0)
	sb.Adornee = p
	local bg = Instance.new("BillboardGui",p)
	bg.Adornee = p
	bg.ExtentsOffset = Vector3.new(0,4,0)
	bg.Size = UDim2.new(0,200,0,25)
	local tl = Instance.new("TextLabel",bg)
	tl.Text = "no"
	tl.Size = UDim2.new(1,0,1,0)
	tl.BackgroundTransparency = 1
	tl.TextColor3 = Color3.new(0,1,0)
	tl.FontSize = "Size24"
	coroutine.resume(coroutine.create(function()
		handle(p)
	end))
end
--Don't edit anything below this line
function doWork(par,func,class)
	local a = par:GetChildren()
	for i=1,#a do
		if a[i]:IsA(class) then
			func(a[i])
		end
		doWork(a[i],func,class)
	end
end
mainObject.DescendantAdded:connect(function(obj)
	if obj:IsA(mainClass) then
		handle(obj)
	end
end)
doWork(mainObject,handle,mainClass)
lighting()