Of those, youll want roughly ten bits of removal and interaction in your deck
One rewards you for doing a specific in-game action while the other punishes your opponent for the same act
Having the option of either exiling a creature or Planeswalker or getting a creature or Planeswalker back from the graveyard is good enough on its own to land Soul Transfer in many standard decks that use black
Even though I won't open the 1:1 one ring, I'd personally go with The Lord of The Rings: Tales of Middle-Earth collector boosters if I could find them
Interaction Youre running a ton of cheap protection effects like Arcane Denial, Counterspell, Slip Out the Back, and Swan Song to keep the Lord of the Nazgl protected while building up the wraith army
Protection is also provided by Riders of Gavony, which can create a massive advantage against mono creature decks