Annul answers Oath of Druids or Sphere of Resistance before it resolves, both of which are backbreaking permanents for us to deal with reactively. Powder Keg struggles to hit a clean board since their curve is spread across artifacts, lands, and enchantments of varying mana values, and Daze is less appealing since they play Wasteland and Rishadan Port to punish our tempo plays, making bounce-lands-for-tempo risky.