Red Black Control(help please)

[Bapr]

I personally think you need more {Sign in Blood}

What should I take out for it?

You could do a 3-3 split with  {Mutilate}

You always want your board wipes available to you. I'd honestly drop an Olivia. She legendary and won't do you much good when ones already on the field.

[InfinitiveDivinity]

I personally think you need more {Sign in Blood}

What should I take out for it?

You could do a 3-3 split with  {Mutilate}

No, 4 {Mutilate}, no exceptions. It is needed.