My friends got into D&D through *Stranger Things* and as the final boss of a campaign I'm writing I think Demogorgon (D&D's Demogorgon, not like the one in the show) would be a fitting end to a long struggle.

He's mentioned on page 51 of the *Monster Manual* but it gives no stats. Where can I find Demogorgon's stats?

(To clarify I do not want to find the stat block for the *Stranger Things* demogorgon.)