One location might grant bonuses to characters when they visit that location - how this works is a mystery, for now - while another might bestow passive benefits as long as it remains in play
In addition to the ten legendary creature "face" cards from Streets of New Capenna Commander decks, you can find eight more new-to- Magic Commander cards that aren't found in those Commander decks
Gettin Mama Odie, Mystical Maven out there early - which should be doable thanks to the cheap cost of the card - alongside a handful of songs, will very quickly put you into a position wherein you can play a lot more cards per turn or a much more expensive, and more powerful, card a lot earlier than your opponent
If we can get three Wizards in play and flip Kuja, each noncreature spell we cast will deal two damage, which means with enough Wizard tokens, we should be able to burn our opponent out of the game in just a turn or two by casting cheap card draw like Highway Robbery, Opera Love Song, and Wrenn's Resolve