It's a great choice for a Saproling and fungus deck, but Sporecrown is still just a lord effect and doesnt fit within the criteria
Her deck is the perfect home for Slaughter, which lets you reliably trigger both her abilities repeatedly, while mucking up your opponent's best (nonblack) creatures
Fear of Change, a 2-drop Simic creature from Alchemy: Duskmourn
Its ability is incredibly powerful and flexible, but the writing on the card is a bit of a "wall of text" and doesn't lend itself to easy reading so let me break it down for you
This is the range I like for my specs, to go from $20ish to $40ish is much more likely than the poster foil going $120 to $250
Before I break down exactly what the themes of the Final Fantasy decks should be, I should quickly go over what games are up for grabs here