Your commander needs to be the same type declared with Umori, the Collector, so youll most often find it companioned alongside all-creature decks, though enchantment creature or artifact creature commanders open other possibilities
If you copy a spell, you control the copy
Protecting ElshaElsha at level one, going wide at level two, and making ElshaElsha massive and double strikey to end the game, or to start to rebuild after a board wipe
I could go into its history, but if youre interested in learning more Id highly recommend this video from YouTuber Rhystic Studies expertly breaking down its significance, as well as this recent one from Magic designer Gavin Verhey digging into all the times the lotus has made its way back onto a card
Mother of Runes turns one mana into a constant shield for your best creatures, forcing opponents to play around her from the moment she hits the battlefield