This ability makes it so if a character under your control is challenged, so long as Tiana is exerted, your opponents character gets -3 strength unless its owner pays three ink
Not to be outshone by Kefka, Kefkas Tower returns to us as Bolass Citadel

Rinoa Heartilly Rufus Shinra Rydia's Return Rydia, Summoner of Mist Samurai's Katana Sandworm Sazh's Chocobo Self-Destruct Shambling Cie'th Shantotto, Tactician Magician Sidequest: Card Collection Sidequest: Catch a Fish Sidequest: Hunt the Mark Sidequest: Play Blitzball Sidequest: Raise a Chocobo Sleep Magic Snow Villiers Sorceress's Schemes Stolen Uniform Summon: Alexander Summon: Anima Summon: Esper Ramuh Summon: Fenrir Summon: Primal Garuda Summon: Shiva Swallowed by Leviathan The Crystal's Chosen The Emperor of Palamecia The Final Days The Gold Saucer The Lord Master of Hell The Prima Vista Thief's Knife Tidus, Blitzball Star Tifa's Limit Break Tonberry Torgal, A Fine Hound Travel the Overworld Ultimecia, Omnipotent Ultimecia, Time Sorceress Ultros, Obnoxious Octopus Unexpected Request Valkyrie Aerial Unit Vanille, Cheerful l'Cie World Champion, Celestial Weapon Yiazmat, Ultimate Mark Zack Fair Zidane, Tantalus Thief

Youre Welcome can be played for free, however, if youre able to exert a character with an Ink cost of 4 or more