CMM or Cull obsidian to rank 4 as 5*s?

I have a CMM unduped and a Cull duped both as 5*s, wondering who to take up. Comments would be nice.

Comments

Oh, and btw, I don't have Nick or corvus. And no awakening gem either

This content has been removed.

For once, I agree with Mr. Hoya

Cull hits harder but dies fast has far less utility and relies on his dupe a lot more

im finally agreeing with the good doctor

For once, I agree with Mr. Hoya

You mean Dr Luciano

For once, I agree with Mr. Hoya

You mean, you agree with him rite no