For legacy Fatal Push is the best single black creature removal. If you go to 2 CMC Abrupt Decay is an option and at 3 CMC you have Vindicate though both of those are multicolor depending on the deck you are running. If you want to stay mono black then Heartless Act, Go for the Throat, and Doom Blade are all fairly similar. With Lurrus basically in every deck Doom Blade is probably third with Go for the Throat and Heartless Act mostly killing the same things. The only creature that really gets counters is Walking Ballista, but it's also an artifact so not affected by GftT either.
Oh and Dismember. Dismember mostly gets run by non-black decks, but if you want more 1 cmc removal if you don't mind the lifeloss it works.
In general those are the best options though it can depend on the situation you are looking at. Cards like Hero's Downfall or Murderous Rider are better options if you expect to need to kill planeswalkers, Vraska's Contempt will permanently exile a creature though it costs 4, Tragic Slip is a very efficient card, but situational. Liliana of the Veil gives you an edict effect while letting you keep a planeswalker on the board. Even cards like Dead Weight have a place because they can often kill small things while counting towards Tarmogoyf's p/t or being able to be recast with Lurrus of the Dream-Den
How about it i open it up to 2 cast spells? What are some good ones?
Thanks for any tips....
The Precious
B___U___G___R___W
Oh and Dismember. Dismember mostly gets run by non-black decks, but if you want more 1 cmc removal if you don't mind the lifeloss it works.
The Precious
B___U___G___R___W
i play broken cards