Azorius Replenish wants to resolve Replenish to bring back Opalescence and Parallax Wave simultaneously, so Meddling Mage naming Replenish can single-handedly stop their combo, with Opalescence or Attunement as alternate names depending on what you've seen. Teferi's Response stays in the sideboard: nothing in their deck targets your lands (Parallax Wave exiles creatures), so it has no targets in this matchup. Standstill is bad since they're content stalling behind Abeyance and Swords to Plowshares, and Mana Leak is weaker against their Ancient Tomb-fueled fast starts. Keep Annul in the maindeck plan since it directly counters Opalescence, Parallax Wave, and Decree of Silence, though it cannot hit Replenish because that is a sorcery.