Fact or Fiction
This can +2 to draw a card and scry two which is nice card flow, and then -3 to exile the top card of your library and then make a number of 1/1 flyers equal to the mana value, which is also very strong in Type Four with its elevated casting costs and low land count
This isnt a combination of colors that sees a lot of play in EDH
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It's quite mathy, but he goes into a great deal of detail and explains his rationale, while not ignoring the realities of the game (there are one-mana Cycling cards, cards that fetch lands, cards that tap to add mana which aren't lands, and more.)
This Plains is actually part of a diptych, a single painting combined with the Forest he did for Lorwyn, and that was later cropped down to become two separate cards