Strixhaven is maybe my favorite retail draft format I've ever played. To me the color pairs thing doesn't hold much water because I just jammed 4-color decks every time and got to play with sweet cube cards from the Mystical Archive.
Entomb itself is sweet if you have the right support. I would maybe try it and Gravebreaker if I was running a slightly lower power graveyard-centric environment.
I have it on a couple cards in Eldrazi Domain but I don't know if I'd consider it a success. The cards that are playable without a good populate are the only ones really left in the list.