Mono Red Rally is a hyper-aggressive combo-aggro deck aiming to alpha strike with Rally at the Hornburg, so Archon's Glory can save a blocker or swing a crucial combat while gaining life when bargained. Standard Bearer absorbs their removal (Galvanic Blast, Lightning Bolt) that would otherwise clear your blockers ahead of their alpha strike, protecting your board state. This matchup is close to a mirror race, so keep your proactive curve and cut only the slowest, least impactful cards. Prioritize maintaining blockers and life total over card selection.