Brotherhood's End comes in as a sweeper against their small creatures. Its 3 damage clears Eldrazi Spawn tokens, Basking Broodscale, Sowing Mycospawn and Haywire Mite, and its other mode destroys cheap artifacts such as Blade of the Bloodchief, Springleaf Drum, Vexing Bauble and Soul-Guide Lantern. Wish is too slow against a deck that can ramp into Emrakul or grind with Kozilek's Command, so one copy comes out. Most of their interaction (Kozilek's Command, Devourer of Destiny's trigger) is colorless, so Veil of Summer, which only grants hexproof from blue and black, does not protect us from it and stays in the sideboard. Focus on racing before they stabilize with Ugin's Labyrinth and big Eldrazi.