Summary Deserts have been around in Magic since Arabian Nights, but made a comeback in Amonkhet and decks like Thunder Junction's Desert Bloom
Yes while the most popular zombie commanders are Dimir (black-blue), you can build a focused mono-black list and lean on payoffs like Cryptbreaker, Gravecrawler, Undead Augur, and Gray Merchant of Asphodel
The card is so good right now that Azorius Control even plays three copies(!) in their mainboard
Its problem is that it can't deal with cards that have already been cast
Commander Nicol Bolas, the Ravager is the most unique in the game, transforming into Planeswalker Nicol Bolas, Arisen
When it was released, I couldnt believe what I was seeing, due to the weakness of control spells in the last few years