I think it's actually 3 parts now: Vision design, Set design, and Play design
When Prophetic Prism is legal, it usually ends up being in one deck or another, and with all of the benefits Kaladesh offers from having artifacts on the battlefield, I think you can expect to see Prophetic Prism around for the duration of its legality
Traditional foil Retro-Frame Fetch Land in less than 1% of boosters.
You might also spec into graveyard exile effects like Unlicensed Hearse, to ensure you steal only the choicest morsels
Quina, Qu Gourmet Token decks are always getting support
You can take your deck to a local Lorcana League, though we suggest checking out our upgrade recommendations first for a stronger build