Domain Zoo leans on small efficient creatures (Wild Nacatl, Ragavan, Territorial Kavu) backed by burn like Lightning Bolt and Tribal Flames, plus their own Leyline Binding. Brotherhood's End sweeps their creature board for 3 damage each, which kills Wild Nacatl (at most a 3/3) and Ragavan, and kills Territorial Kavu only while their domain count is 3 or lower. It will not kill Scion of Draco (a 4/4 whose domain only reduces its cost) or Quantum Riddler (a 4/6), so those need other answers. Consign to Memory's counter-colorless-spell mode is mostly dead here since their key spells aren't colorless, but it can stop Scion of Draco (a colorless creature spell) and incidental triggered abilities. Bring them mainly for that narrow utility, or lean more on Brotherhood's End. Cut some Galvanic Discharge since Brotherhood's End does the sweeping job better, along with some Prismatic Ending and Pawpatch Formation that are slower one-for-one answers against this fast aggressive deck. High Noon and Teferi, Time Raveler remain excellent at slowing their low-curve aggression.