Starting off, the decks core themes will be discussed
The simplest I found gives you as many cards as you like thanks to Mystic Forge plus Sensei's Divining Top
As such, Omnath, Locus of Mana is a very expensive card
Instead, I think it bodes well for the way Wizards of the Coast is handling this set that a Final Fantasy fan would be able to accurately predict what some of their favorite characters might do

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So, buying fake cards directly hurts your local game store, and if fake cards become too popular and widely used, it's possible that some stores simply won't survive, which leaves everyonewith fake or real cardswithout a place to play Magic