With Tianas ability, Special Reservation, anytime one of your characters is challenged while Tiana is exerted, the challenging character gets -3 strength unless your opponent pays three ink
Some artifact payoffs, like Urza, Lord High Artificer and cards with affinity, might not care if the Opal taps for mana or not
But if you get up to three tokens or more, you can turn them into 3/3's absolutely for free by transforming Poppet Stitcher into the Poppet Factory
Bartz Klauser (Winota, Joiner of Forces) Rating: 7/10 Winota, Joiner of Forces is a powerful threat that gives you a rare source of card advantage in any aggro deck
Zanarkand, Ancient Metropolis is the only good adventure town, though Id be willing to play any of them except Jidoor, Aristocratic Capital over a basic
Anything that makes the game more accessible is good