Usually it takes me most of the month to grind to masters but I did it in four days with this time deck and a few shadow cards. Suffocate was strictly for rolant and CC for aggro/ board wipes. The rest of the deck was ramp to the big fatties which I mainly had 2 of to avoid getting blown out from a TTS. Bhodi and Rox was a test to avoid running out of gas but I mainly avoided that by marketing for Grodov's Burden 99% of the time and starting a killer combo. The Ubsat race is still real for time decks and Braun and Thundering Kerasaur are nice big guys to stand up to Backbreaker.
Good luck grinding all!