“Azorius Replenish is a combo-control deck that uses Attunement and Frantic Search to rapidly cycle enchantments into the graveyard, then reanimates them all at once with Replenish. The primary win condition is resolving Opalescence alongside Parallax Wave or Decree of Silence to lock the opponent out of the game while attacking with animated enchantments. The deck uses counterspells and Swords to Plowshares to survive long enough to assemble the combo, with Ancient Tomb providing the fast mana needed to deploy threats ahead of schedule.”
Missing sideboard cards? The full 15-card sideboard runs about $54.27.
Buy sideboard on ManapoolMeddling Mage naming Phyrexian Dreadnought or Stifle completely shuts off their one-card combo kill or its protection, and is very hard for them to answer. Abeyance stops their counterspell suite cold on a turn you need to resolve Opalescence or Replenish, since they can't respond with Stifle or Counterspell. Mana Leak is weak since they have cheap/free counters and Daze to beat it, and Seal of Cleansing has no good artifact/enchantment targets here. Keep Swords to Plowshares in as your best Dreadnought answer.
Meddling Mage naming Replenish is devastating in the mirror since it completely denies their win condition while you work toward assembling your own. Abeyance shuts off their counterspells and Swords to Plowshares on the turn you try to resolve Opalescence or Replenish, which is often the whole game. Trim Intuition since in the mirror it can hand them useful information about your deck, and Mana Leak since both players generate plenty of mana via Ancient Tomb to pay through it. One Seal of Cleansing is a reasonable cut too since both players rarely have artifacts worth targeting beyond each other's enchantments, which Meddling Mage and counterspells handle more proactively.
Armageddon is their key blowout card against a slower combo deck; extra Seal of Cleansing copies help remove Treetop Village or other permanents and keep your enchantment-based plan resilient after a land wipe. Sphere of Law has no relevant targets against a green/white deck, so treat it as a low-impact flex slot; the real value here is trimming Mana Leak, which is weak against cheap, resilient threats like Terravore and Wild Mongrel they'll pay through easily. Prioritize durdling past Armageddon with Ancient Tomb and rebuilding via Replenish.