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Phyrexian Altar can be a good substitute if you need colored mana instead
Master gives you the token at the beginning of your fifth turn, and Whisperwood gives it to you at the end of your fifth turn
You can typically disassemble a constructed decks plan with fewer bits of disruption than you can against a cube deck
Playing lands from the graveyard is one thing, sure, but being able to grab them in other ways is just as vital when building a deck around this strategy
These alternate art cards are available only as part of this limited Collectors Set, which also includes 4 booster packs from Disney Lorcana: Rise of the Floodborn