Grafdigger's Cage stops Emrakul, the Promised End and Devourer of Destiny from cheating into play and shuts off any recursion, while Damping Sphere blunts the Eldrazi Temple/Ugin's Labyrinth ramp. Obsidian Charmaw comes in as efficient flying beef that dodges their ground-based removal and can snipe Boseiju or a problematic nonbasic. Thoughtseize is weak since this is a low-interaction value/ramp deck with little to strip early, and Flare of Malice is clunky since they have few good sacrifice targets for you to force. Keep Orcish Bowmasters trimmed since their token generation (Eldrazi Spawn) is low-impact colorless mana fodder rather than a real card-advantage engine to punish.