As you can see from the keyword soup, above, there are a ton of ways to make Prosper make you, well, prosper
Use a deck of world cards and a special world dice to trigger unique abilities and travel across the multiverse
Caged Sun is a fantastic card for Mono-colored decks, so this reprint is nice, while Gilded lotus and Mystic Forge are both great in this deck in particular
This instantly makes it more difficult on your opponent as they have to either challenge them or divert attention onto Aurora instead of higher threats
If they have Defense Grids, youd want to keep in Prismatic Endings, while if they are more midrange and play creatures like Uro, Titan of Natures Wrath, you should keep in some copies of Swords to Plowshares