You can get around this by running plenty of free instant speed sacrifice effects, which is pretty easy since black is loaded to the brim with these types of effects
If you're using rulebreaker just to craft a deck with 5-color wincons, that's not really different than just building a 5-color deck
After the Eldrazi Emrakrul twisted them, they became the herald of nightmares
However, in a deck that is running ways to consistently untap the pyramid (Paradox Engine) and/or ways to add extra counters (Atraxa, Praetors' Voice), then Pyramid of the Pantheon becomes much better and I'd happily run it
2 Green: Marwyn, The Nuturer Nuture Elves, Get More Elves are one of the strongest creature types in commander, with Marwyn, the Nurturer one of the best commanders for Elves and the best when it comes to mono-green
You can, however, copy Scrivener and Anarchist to your hearts content