Rakdos Sacrifice vs Izzet Aggro

Izzet Aggro wants to curve out with cheap prowess creatures and burn, so cutting slow discard for cheap removal that answers their threats before they can grow out of range is key. Dark Betrayal picks off nothing here since Izzet Aggro's creatures are not black—reconsider: actually their creatures (Monastery Swiftspear, Pompous Battlemage, Emberheart Challenger, Screaming Nemesis) are red, so Dark Betrayal is dead; prioritize Fatal Push instead for cheap interaction on their 1-2 mana value creatures. We'll keep this plan minimal given limited good answers.