https://www.mtgsalvation.com/forums/the-game/modern/established-modern/midrange/651723-bw-eldrazi-processor
CBW Processors was originally inspired by a BR version, created and piloted by EternallyRamza, that 5-0'ed an MTGO event. The original deck strongly committed to Eye of Ugin and Urborg, Tomb of Yawgmoth in the land base, and to Relic of Progenitus and Scrabbling Claws maindeck, in order to quickly ramp into Blight Herder, Oblivion Sower, and finally Ulamog himself. Since then the build has changed significantly, losing the late-game inevitability package provided by Eye of Ugin and Ulamog, and modifying the curve, while eagerly adopting the best of the pushed Eldrazi from Oath of the Gatewatch.
Processors is a highly interactive, control-oriented, midrange deck. It is currently very low profile, despite having many favorable matchups, many close or even matchups, and only a few distinctly poor matchups. It uses abundant hand disruption and targeted removal to control the opponent’s game, while beating face mid-to-late game with large, powerful creatures and lots of 1/1 tokens. It attacks on many axes, including maindeck graveyard hate, manlands backed up by mainboard land destruction, and even interaction with the opponent’s exile zone (why hello there, Ancestral Vision!). Several lifegain sources offset the sometimes-painful land and spell mix.
Why to play this deck:
You like a grindy, fair deck that can occasionally play as if it was extremely unfair
You like direct interaction with many aspects of an opponent’s game plan
You like having some of the bigger creatures (and many of the smaller creatures) in the format on your side of the table
You want to fly under the radar playing a powerful but little-known deck with unusual lines of attack
You don’t mind playing defense early, turning the corner mid-to-late, and games going long sometimes
Why not to play this deck:
You prefer combo, linear decks, and/or T4-5 wins
You’re not attracted to the sometimes subtle art of hand disruption using Thoughtseize-type effects
You don’t like damaging your own life total, sometimes even to the point of game loss
You don't feel comfortable with a high curve on a tight manabase
