Here are some ways to reduce the price of your deck: Run Fewer Colors The best lands for Commander (and all Magic formats as a whole) tend to be expensive
Crucible of Worlds Crucible of Worlds holds up in decks that regularly need to replay lands from their graveyard, but this text gets tacked onto so many cards these days that its no longer a unique effect
In addition to Kross ability, we can use cards like Opposition, Sleep, and Frost Titan to tap things down

Absolute Virtue Adelbert Steiner Aerith Gainsborough Ambrosia Whiteheart Ashe, Princess of Dalmasca Bahamut, Warden of Light Beatrix, Loyal General Cecil, Redeemed Paladin Choco, Seeker of Paradise Cid, Timeless Artificer Cloud, Midgar Mercenary Cloud, Planet's Champion Cloudbound Moogle Coeurl Delivery Moogle Dion, Bahamut's Dominant Dwarven Castle Guard G'raha Tia Gaelicat Garnet, Princess of Alexandria Giott, King of the Dwarves Hope Estheim Hydaelyn, the Mothercrystal Joshua, Phoenix's Dominant Judge Magister Gabranth Lightning, Army of One Magitek Infantry Minwu, White Mage Noctis, Prince of Lucis Phoenix, Warden of Fire Rinoa Heartilly Rosa, Resolute White Mage Rufus Shinra Serah Farron Snow Villiers Squall, SeeD Mercenary Stiltzkin, Moogle Merchant Summon: Alexander Summon: Choco/Mog Summon: Knights of Round Summon: Primal Garuda Tidus, Blitzball Star Venat, Heart of Hydaelyn Weapons Vendor Yuna, Hope of Spira Zack Fair Zidane, Tantalus Thief

And they firmly believe in the prophecy that New Capenna will eventually fall