Boros Aggro floods the board with efficient low-cost threats like Momo, Friendly Flier and Sarkhan, Dragon Ascendant, then closes with big Dragons. The extra Requiting Hex copies answer their early two-drops cheaply without the additional cost of Deadly Precision, which is too slow against an aggressive curve. Guerrilla Gorilla's reach helps block their evasive flying Dragons like Nova Hellkite and Magmatic Hellkite. We cut the situational Fanatical Offering, which needs board presence you may not have against a fast aggro deck, and the double copies of Deadly Precision that are too costly early against this clock.