Most of these white mana ramp cards are for the Commander format, as that's where this MTG color really needs to be ramping the most
One more thing worth knowing before you buy with resale in mind: Magic boxes behave differently from Pokmon and One Piece when held sealed, because Wizards reprints to demand
Aminatou, the Fateshifter This planeswalker allows you to control the game by flickering permanents
Take one of my Commander decks: It has Command Tower, Tropical Island, Breeding Pool, and Misty Rainforest all in it
While Myrel is on the lower end of the most valuable cards now, dont be surprised if it continues to climb once The Brothers War stops being printed
While I dont consider Sorin an absolute must-include, I do believe it to be a very strong consideration for Cube broadly