Its far from a auto win.I don't think Lugia-GX is too bad. First attack isn't terrible and while 4 for 170 might not be the best when you can't use it the following turn, the gx attack is an auto-win against any deck that isn't able to set up a bench by turn 2.
I am hyped that Professor Elm's Lecture is true, but also kind of disappointed. I was hoping that Brigette-like cards would no longer exist in the meta to hopefully prevent Zoroark from becoming ridiculous again, but that isn't going to happen. Also can't wait to see Hoopa and Ampharos-GX.
It's quite literally an auto win if you get a DCE + any other kind of Energy on Lugia and your opponent is forced to draw/pass with nothing on the Bench.Its far from a auto win.