This is a mirror-ish matchup against another Devoted Druid-style combo deck, so cheap, efficient removal is key: Fatal Push kills Devoted Druid, Vizier of Remedies, or Birds of Paradise for one mana (Revolt easily enabled by our fetchlands) before they go infinite. Abrupt Decay removes any 3-or-less mana value piece like Tyvar, Jubilant Brawler or Agatha's Soul Cauldron itself and can't be countered. We trim slower value and manabase redundancy for maximum interaction density since whoever disrupts the other's engine first, or resolves their own combo first, likely wins. Walking Ballista remains vital both as a combo piece and as removal for their mana dorks.