I would definitely cut Mycoloth. Its too much of a hit if it gets killed right away. Creakwood Liege is another card I'd cut but Dragonlair Spider is really good in a multiplayer game. Sarkhan Vol and Helm of Possession are good cards because you can ac the creature before the opponent gets his creature back, I strongly recommend those 2 cards.

goodair The three you mentioned are the first three I will cut once I get the new pre con for the various broken things in there. I played several steal effects when I first made the deck, but I found them to inefficient but those two seem like the cream of the crop for that effect. I will try out the two of those for sure, sarkhan has been at the back of my mind for a while.

Ill look through your list again later on, there's some cards on there I used to run but it really depends on who your playing against. My friends tend to play aggressive decks or just cards that punish you for relying on key pieces.

Dragon Throne of Tarkir is a card I'm thinking about putting back in, either that or Pathbreaker Ibex like you suggested.

goodair seems ok, but ill try the ibex first.