A tempo deck that attempts to get value from exiling opponents cards. This deck hopes to win by having Ashiok hit something good or the mixture of hand disruptions, counter magic and removal leading to a board state where our creates can just swing in.

While Ashiok can it only get back cards it has exiled, Wasteland Strangler and Ulamog's Nullifier can use any exiled cards making Brain maggot and Delay much better cards in this deck.

Obvious improvements are fatal push, thoughtseize and a better mama base. Adding white for path to exile, Tidehollow Sculler and Eldrazi Displacer might be a good idea.

Sideboard is meta dependent but Leyline of the Void is probably a good idea and swapping out removal for Kitesail Freebooter against control should work.