Rakdos Sacrifice relies heavily on Cauldron Familiar recursion through Witch's Oven and graveyard value from Fable of the Mirror-Breaker, so Ghost Vacuum and Soul-Guide Lantern proactively strip their engine and can exile Cauldron Familiar before it loops. Scorching Shot upgrades your removal to reliably kill Mayhem Devil (3/3) and Bloodtithe Harvester (3/2) outright, where Burst Lightning's base 2 damage falls short. Boomerang Basics is weak since it doesn't answer their sacrifice engines permanently and just resets a Witch's Oven for a turn. Keep Academic Dispute and Reckless Rage as your primary interaction to answer their early creatures before Mayhem Devil triggers pile up damage.