if you hate combo hit them in the face with this.

{"ops":[{"insert":"I see the aim is to get to 21 commander damage pretty quickly, but if that's the case, won't you probably need more ramp? \nSomething like a Tuktuk Rubblefort would be good too, as a haste enabler that allows Grevon to attack with haste, while gaining a decent bit of toughness too. And crashing drawbridge. \nOther cards of interest would be stacks, to help make the combo harder, such as Thalia, Heretic Cathar, Thalia, Guardian of Thraben, or Trinisphere. While they may hose your ramp a little, you can play with timings to make it more favourable for you. On a similar note, Phyrexian Censor would be a very strong addition, as it doesn't impact your commander. \n\nIt's a neat deck though, and seems incredibly aggressive. I hope it's served its purpose! \n"}]}