I feel like you need Keldeo-Ex in this deck, so you can abuse the Slurpuff ability, so you could remove 1 Pokemon Center Lady.
Also i don't think you need the Roller Skates, i'd remove it and add 1 more Virbank City Gym, since most of the decks are running 3-4 stadiums.
Thanks buddy, nice list, there's a loooooot of donphans and yveltal variants here, i'd cut 1 Manectric EX. There's a list from regionals that used 1-1 Drifblim, I might try it.
I'm really interested in this deck for the City/Regionals here, could you please put your list focused on fighting stuff? Does regular Landorus work to deal with safeguarders and accelarate even more?
RE: Why Donphan is now broken
I think it's because of the Barrier effect.
Ω Barrier: Whenever your opponent plays a Trainer card (excluding Pokemon Tools and Stadium cards), prevent all effects of that card done to this Pokemon.
In other words, no Lysandre or Escape Rope.
I'm a huge fan of this deck, i've been playing all the variations, and i've figured out the 3-3 flareon 4-4-4 marchs and 1 mew ex is the best (at least here in my region, which have lots of Yveltal,VirGen and Donphan).