We also needed something for chocobos to do, and the saddle mechanic didn't exist yet due to the development timelines of Outlaws of Thunder Junction and Aetherdrift
Here's our combo-centric deck tech for Yuna
I count: 38 lands and The Balrog of Moria (kinda), Treasure Nabber, Arcane Signet, Basalt Monolith, Commander's Sphere, Everflowing Chalice, Mind Stone, Relic of Sauron, Sol Ring, Worn Powerstone, Shiny Impetus, Cavern-Hoard Dragon 50 mana
you can win a game or even just knock out an opponent or two with a decently sized board.
These decks then battle for supremacy and use their Commanders to glue their strategy together, as they sit in the Command Zone and are thus available each game without needing to draw them