To build Eddie Brock, for example, I need to mine sets like Lost Caverns of Ixalan for giant creatures that can have their mana value lowered for play, and later, sacrifice
Even odder than that, Wizards didn't reveal card text or even rarity of the cards
You can create pokemon cards for free through this website by entering all the information such as name, HP, type, and stage, and attaching the URL of the image you want to upload to the card
From exile, you can cast the other side of the card, getting yourself a permanent, typically a few turns later, but not really putting yourself behind on cards
I like it the best in blue/green Town decks because that deck can splash other colors easily and doesnt care about giving them a token (a token thats way more of a liability in this format due to all the decent equipment)