The Outlaws of Thunder Junction Spree spells Great Train Heist and Final Showdown can be cast off this, you know
Balthier and Fran Bartz and Boko Choco, Seeker of Paradise Cloud of Darkness Crystallized Serah Diamond Weapon Esper Terra Exdeath, Void Warlock Garnet, Princess of Alexandria Gladiolus Amicitia Ignis Scientia Jenova, Ancient Calamity Neo Exdeath, Dimension's End Omega, Heartless Evolution Quina, Qu Gourmet Ragnarok, Divine Deliverance Rinoa Heartilly Rydia, Summoner of Mist Sazh Katzroy Serah Farron Sin, Spira's Punishment Terra, Magical Adept The Earth Crystal The Wandering Minstrel Tifa Lockhart Torgal, A Fine Hound Vanille, Cheerful l'Cie Yuna, Hope of Spira

That leaves us with this list: Creatures (29) 1 Throat Slitter 1 Skullsnatcher 1 Ink-Eyes, Servant of Oni 1 Higure, the Still Wind 1 Solemn Simulacrum 1 Aura Thief 1 Sakashima the Impostor 1 Dimir Doppelganger 1 Vesuvan Shapeshifter 1 Puppeteer Clique 1 It That Betrays 1 Sheoldred, Whispering One 1 Silent-Blade Oni 1 Baleful Strix 1 Sakashima's Student 1 Diluvian Primordial 1 Lord of the Void 1 Sepulchral Primordial 1 Burnished Hart 1 Gigantoplasm 1 Stunt Double 1 Nimble Obstructionist 1 Yuriko, the Tiger's Shadow 1 Fallen Shinobi 1 Ingenious Infiltrator 1 Sakashima of a Thousand Faces 1 Wandering Archaic 1 Archon of Cruelty 1 Dauthi Voidwalker Lands (37) Spells (33) 1 Mana Drain 1 Sol Ring 1 Copy Artifact 1 Fellwar Stone 1 Sculpting Steel 1 Wayfarer's Bauble 1 Mind Stone 1 Tsabo's Web 1 Twincast 1 Copy Enchantment 1 Dimir Signet 1 Exsanguinate 1 Life's Finale 1 Counterlash 1 Cyclonic Rift 1 Psychic Strike 1 Dimir Cluestone 1 Artificer's Epiphany 1 Mystic Confluence 1 Thought Vessel 1 Mind's Dilation 1 Insidious Will 1 Mirage Mirror 1 Arcane Adaptation 1 Kindred Dominance 1 Nexus of Fate 1 Narset's Reversal 1 Arcane Signet 1 Midnight Clock 1 Drown in the Loch 1 Deadly Rollick 1 Fierce Guardianship 1 Sublime Epiphany Given the mana cost and lack of real speed, this is certainly a battlecruiser-style deck

But they have to be just one fewer for the obvious reasons
This makes prioritizing where you spend your wildcards essential