The war between two brothers, Urza and Mishra, is an age-old feud from the distant past
Or you can pick up your box on or after the release date (July 12), and, if your store has any promos left, you'll get your own Angel of Rebirth
In my years of personal experience, examining good decklists, and talking to people much smarter than me, 50 mana sources is about the right number for most decks to shoot for, usually 37 lands and 13 ramp sources for a general budget deck
This alone will likely ensure the cards place in a range of Commander lists
The bane of elves
A 5/7 Inkable character like this is incredibly tanky, while the Witching Hour is such a strong effect letting you and your opponent draw three, discard three, and then punishing your opponent for letting them dare to draw as many cards as you