The most reliable workflow is to scan the front, confirm the set symbol, collector number, language, holo or reverse holo status, and then compare the result against recent market data before deciding whether to sell, grade, or catalog the card
The spell doesn't resolve
There are of course ways you can break this, especially as it has no mana cost, and that makes it interesting
While Gatekeeper sees most play in graveyard decks and there the Unearth part is crucial, Raphael might slot into those decks as maybe an additional copy, or be played in different decks entirely - such as strategies relying on Rally at the Hornburg
It might not be sleek enough for a Vintage Cube, but it looks like an excellent inclusion for something themed around multicolored cards around the power of a Modern Cube
1 Booster pack = 10 cards