Azorius Tempo has no red spells in its list but does run green mana sinks and green-adjacent threats are absent; however Flashfreeze still only hits red or green spells and this list is mono-white/blue, so it is not a legal fit here and should stay in the sideboard. Instead, Disdainful Stroke profitably counters their Starfield Shepherd, Quantum Riddler, or Guiding Hydra at mana value 4 or more. Duress is weak since this is a creature-heavy tempo deck with few discardable noncreature spells, so we trim it along with one Spell Snare since few of their key threats sit at mana value 2.