Omni-Tell is a glass-cannon combo deck with almost no creatures, so Fatal Push is nearly dead here and comes out; Force of Negation is excellent since it's a free counter on their turn that stops Show and Tell or Omniscience even when tapped out from Doomsday. Dauthi Voidwalker is a proactive clock that dodges their sweeper-free removal suite and exiles anything they mill or discard, while also applying pressure that forces them to interact instead of durdling toward Omniscience. Trim excess cyclers and the narrow Voice of Victory since this matchup is about racing to your own combo or countering theirs, not grinding board states. Keep the full Force of Will and Daze package intact as your primary interaction alongside the new Force of Negation copies.