How to make Custom Enemy [Custom Rig] ?

So I've been finding a way to NOT USE HUMANOID and make my own. Use IntValue for Health and etc. I tried using AnimationController for the "Custom Enemy" it works fine. The thing is , I can't find a away to make the Custom Enemy to follow the Players.

Here's what I got so far.

local Self = script.Parent
local Target = game.Workspace.Target

while true do
    wait(0.1)
    Self.BodyPosition.P = 100
    Self.BodyPosition.Position =  Target.Position + Vector3.new(0,10,0)
end

I tried using BodyPosition , It follows the Target. (the further I move the target , the faster the 'self' flew to the target XD) Do you have any ideas rather than using BodyPosition? Or maybe you know how to improve my script?

Thanks in advance :D