Dimir Tempo wins by protecting a single threat like Murktide Regent or Kaito with free countermagic, so Force of Negation lets you fight on their terms by pitching a blue card to stop a follow-up Thoughtseize, Force of Will, or a key threat on their turn. Consign to Memory is a cheap answer to Orcish Bowmasters triggers and can brick-wall their colorless spells like Mishra's Bauble, while its replicate cost scales well if you flood on mana from Ancient Tomb and Urza's Saga. Metallic Rebuke is a weaker counter here since it's easily played around once they know you're tapped low, and Sink into Stupor is too slow against a deck that rebuilds tempo with cantrips, so both come out. Keep the full artifact and land suite intact since Emry, Urza's Saga, and the Mox-fueled starts are your best way to out-pace their disruption before Murktide or Kaito lock the game up.