This is very different from, lets say, custom alter cards, as the art on those is the property of the people who make them, and also, you know you arent buying a real card. Play it safe if you print the back of an MTG card and put a custom-altered version on the front, and restrict its use to kitchen table rules
Both cards are really, really good though
Non-Foil card have a glossy front finishing instead of matt in the original Magic the Gathering cards, with the cards back remain the same
Why this is a good card to keep in your deck is that there are many characters, items, and actions that allow you to look at your top card, or cards, and return them to the deck
On top of that, tapping 12 powers worth of creatures is pretty tough for most decks
I wish we had a better chance to diversify our attack, but these are still the best cards to be playing