UR Aggro is a low-curve tempo deck full of cheap creatures like Outcaster Trailblazer, Spider Manifestation, and Llanowar Elves that Requiting Hex answers efficiently without the extra cost Deadly Precision demands. Guerrilla Gorilla trades favorably with their small creatures and provides a reach blocker. We cut Fanatical Offering, which is too slow and card-disadvantageous against a fast clock, and Deadly Precision, whose additional cost of paying 4 or sacrificing a permanent is often too slow when you need to stabilize quickly.