They won't be available with this release, but we'll have more information on how you can obtain these lands and other showcase card styles in a future update.) Theros Beyond Death also heralds the return of Sagas, devotion, and constellation to Standard play, as well as the addition of the new keyword escape
If you want to perform a character action that requires exerting the card (questing, challenging, and certain abilities), that card must have been in play since the start of the turn
I think Fervor, Early Harvest and Blanchwood Armor are good buys right now given their low spread and high EDH demand but I dont think we should bother doing this goofy method for any other sets
In this format, 99% of decks out there are using their graveyard as a resource to some degree, from graveyard-themed decks like Karador, Ghost Chieftan to the random White deck that runs Sun Titan for value