Azorius Tempo wants to go wide with small flyers (Momo, Sage of the Skies, Starfield Shepherd) and grind with Daydream and Practiced Offense, so Surrak, Elusive Hunter gives you a threat that dodges their removal suite (Seam Rip, Get Lost, Erode) since it can't be countered and punishes targeted removal with card draw. Meltstrider's Resolve lets your ground creatures fight down their small flying blockers (Momo, Sage of the Skies) to clear the way for attacks. Shared Roots and Earthbender Ascension are cut since they don't affect the board and this matchup rewards applying pressure before they stabilize with their incremental value engines.