UR Aggro is a tempo-forward deck that wants to resolve threats like Temur Battlecrier and Outcaster Trailblazer early and ride them to victory. Flashfreeze is an efficient answer to their key red and green threats like Devastating Onslaught and any red or green creatures, while Shoot the Sheriff cleanly answers any of their non-outlaw creatures. Disdainful Stroke comes in to catch high-impact plays like Michelangelo's Technique, giving you breathing room to stabilize. Deadly Cover-Up, Strategic Betrayal, and Winternight Stories are too slow and situational against a deck operating at this speed. Prioritize using Deceit and Requiting Hex to answer their threats early, and use Duress to strip key noncreature spells like Michelangelo's Technique before they can cast them.