I understand why youd want to play it (milling is useful because of Dance of the Manse and you get to draw cards off your Golden Eggs and Guild Globe) but I think the card is just not good here
It even turns creature cards you wouldnt otherwise play into a resource advantage, such as playing an Elvish Mystic on turn ten in a game of Commander, for example
Ashad, the Lone Cyberman is a fantastic new option for artifacts decks, which, lets face it, have gotten a little stale when you look at three and four color options
However, there are just as many towns as gates, with 23 total gates as of Final Fantasy
Its a two-mana 1/1 that gets a +1/+1 counter on it as long as it has fewer than three +1/+1 counters on it
I can see an instance where a planeswalker could get them, though