The Yuna + Tidus cards are superb, depicting some of the most memorable moments from Final Fantasy history (Inspiring Call, Yuna's Decision, Together Forever, Farewell, Yuna's Whistle)
Its essentially a Stoneforge Masterwork for an additional Mana that lets tokens decks have that kind of buff without being married to a creature type
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However, Vigor's ability to shuffle back into the library upon being destroyed adds resilience and longevity to the deck, making it a solid inclusion for decks looking to maintain a strong board presence over the long term
Jace, Vryns Prodigy is an interesting card in the control building breakdown and falls under miscellaneous
But its a nice unique design which gives it some bonus points in my book