Grixis Affinity is built almost entirely around artifacts, so all three Steel Sabotage come in to counter or bounce key pieces like Myr Enforcer, Refurbished Familiar, Ichor Wellspring, and their artifact-land mana base, disrupting the cost-reduction engine that lets them flood the board ahead of curve. Bouncing an artifact land can even set them back a turn of mana. Trim the slower Meeting of Minds and one Negate, since this matchup is a race where cheap, flexible interaction against their artifacts matters more than card draw. Sunscape Familiar and God-Pharaoh's Faithful continue to block their cheap bodies while Steel Sabotage disrupts the engine underneath.