Iron Golem resummon when Logging in?

Well in classic it was know, that Iron golem will be resummoned each time you enter the game. How is it here?
Also, what skill points he uses? Your skillpoints when you summoned him from item, or your skillpoints when you enter game?

If your skillpoints when entering the game, it would be clever to log into games with Arm of King Leoric equiped then?