Affinity relies on cheap artifacts and Mox Opal for mana, so Damping Sphere taxes each additional spell they cast in a turn, slowing down their explosive draws considerably. The Meathook Massacre sweeps their small artifact creature tokens and Pinnacle Emissary-generated Drones while gaining life per death, and Disruptor Flute can be named on Mox Opal to tax key mana acceleration or on Urza's Saga to shut off Construct token creation. Dauthi Voidwalker cannot block their small bodies due to shadow and doesn't stop their mana engine, while Sorin of House Markov and Beseech the Queen are too slow against a hyper-aggressive artifact plan. Keep Fell the Profane in to answer Kappa Cannoneer and Fatal Push for their cheaper threats.