So far, yes Scene Boxes have only been used for Universes Beyond products
Ideally you want somewhere between 36 to 40 lands in a Commander deck
You can easily blow it up early and then steal all the Commanders and shut down most players
You just don't mind losing a bit of card advantage to ramp when you know you can come back from that with your late game draws
Creative Energy and Creative Energy Collector's Edition 0003_MTGMH3_CmdFace: Satya, Aetherflux Genius 0006_MTGMH3_CmFeatur: Cayth, Famed Mechanist 0146_MTGMH3_Vanity: Satya, Aetherflux Genius 0142_MTGMH3_ComPorEc: Satya, Aetherflux Genius 0137_MTGMH3_ComPorEc: Cayth, Famed Mechanist 0150_MTGMH3_EclVanty: Satya, Aetherflux Genius Check out the cards from Creative Energy and Creative Energy Collector's Edition in the Modern Horizons 3 Card Image Gallery
Then you can spend 2 mana to exile a card from a graveyard so it's graveyard answers, and if you exiled Dinosaurs you own, you can cast them from exile with a finality counter on them