To get this going, you need a sacrifice outlet that produces colored mana, like Phyrexian Altar, and some sort of enabler, like Gravecrawler
It is far from easy to collect all 226 cards without spending real money, but you can use several techniques to give you the best possible chance
Orbs of Warding Orbs of Warding is the second highest costing card that gives you hexproof, and it doesnt do much else besides also preventing 1 damage that a creature deals to you
Keening Stone: milling outlet that can be used against an opponent or for you to place needed cards in your own graveyard
Blipbug #17 (Pokemon Battle Styles | Pokemon Cards) prices are based on the historic sales
4 cards are almost always common, and 3 cards are almost always uncommon, so its possible that the remaining 2 cards could also be rare