Devoted Combo wants to chain Green Sun's Zenith and Nature's Rhythm into an infinite mana/Craterhoof finish, so Ashiok, Dream Render shuts off their ability to tutor via Green Sun's Zenith and search effects from their fetchlands, slowing their consistency considerably. Teferi, Time Raveler restricts their interaction to sorcery speed and can bounce a problematic Agatha's Soul Cauldron or Vizier of Remedies. Preordain and Spell Pierce are the least impactful pieces since this matchup is a race of engines rather than a counter war. Keep Thoughtseize and Force of Negation in to strip or stop their key combo pieces before they go off.