Grixis Affinity floods the board with cheap-to-free artifact threats like Myr Enforcer and Refurbished Familiar while grinding card advantage from Ichor Wellspring and Reckoner's Bargain, so cheap removal and graveyard disruption both help. Tragic Slip is excellent one-mana removal for their small artifact creatures and can outright kill a Myr Enforcer via morbid. Faerie Macabre denies value from Blood Fountain returning creatures from the graveyard while also blocking. Sadistic Glee is too slow against their low curve, and Rite of Consumption is a clunky finisher we don't need against a deck we should be racing or grinding out with removal.