UBG Reanimator relies entirely on its graveyard to cheat Griselbrand, Atraxa, Grand Unifier, or Archon of Cruelty into play via Reanimate, Animate Dead, and Shallow Grave, so Dauthi Voidwalker is a premier answer: it exiles any card headed to their graveyard, stripping away their reanimation targets the moment they discard or mill them with Faithless Looting. Orcish Bowmasters punishes their Faithless Looting draws and any extra card draw, chipping in damage and an Orc token while they set up. We cut Daze since we need to commit mana efficiently toward our own combo rather than hold up a counter that costs tempo, and trim Flow State for these higher-impact disruptive threats given how fast this opponent can win.