When building a deck, the minimum card requirement is 60
(If you look at the bottom left of the card, you'll notice that it says FFVIII right beside the collector number, letting you know which Final Fantasy videogame it hails from)
Some creature types like Angel, Demon, and Dragon are too top-heavy for typal decks in 60-card formats, but Commander decks can still make Angel typal decks with the likes of Giada, Font of Hope around
The other option will be to wait for the spike when everyone knows about the cards, not just the folks who are rabid for new news and are invested in being on top of the newest information
In any deck, youre getting a 4/4 haste creature that comes with a built-in one-sided Howling Mine and a super-hoser against control decks
Each of the ten prevalent colour combinations used for Ravnicas guilds has a discernible theme which players should be able to play into easily