WUBG leans on Oath of Druids to cheat in Terravore and other big threats, so instant-speed removal that can answer a creature the turn it enters matters; Vendetta and the extra Diabolic Edict serve that role. Graveborn Muse's life loss is dangerous against a deck that can go over the top with Oath-cheated threats, so it sits out, and Ravenous Rats is replaced since our Duress and Cabal Therapy already cover hand disruption against their noncreature-heavy list. Watch for Sphere of Resistance taxing our Dark Ritual and Cabal Therapy plans, and prioritize Wasteland/Mishra's Factory pressure while they set up.