If you are willing to give up the fifth through eighth best cyclers in your deck for slightly better existing removal options, Jim Davis had a nice-looking Jeskai list last week that I would start with
For more details, you can find the entire archive on Twitch.
Playing the Overlord on three will put you at four lands that turn, and if you have another land drop on your fourth turn, you can cast another Overlord for the full five mana, as a creature this time, while further ramping you to six lands
Its a nice effect on the left door, especially if you have a good 1-drop to play, then the more expensive right door is a way to win the game, providing your board manages to dodge a Sunfall
The fact that the first half is a hybrid mana means that a fair number of nonwhite green decks and nongreen white decks will be able to splash it for an incredibly low opportunity cost