Steel Sabotage from our board is our premier tool here since its main value is flexible cheap interaction, countering artifact spells or bouncing opposing artifacts, alongside Envelop to counter their card-advantage sorceries like Thoughtcast. We cut the weaker tempo pieces since Affinity floods the board fast and we need answers, not just bodies. Focus on countering their key enablers like Refurbished Familiar or Utrom Monitor before they get out of hand with cheap artifact synergies.