The Final Days Gaius van Baelsar Hecteyes Braska's Final Aeon (Jecht, Reluctant Guardian // Braska's Final Aeon) Jecht, Reluctant Guardian (Jecht, Reluctant Guardian // Braska's Final Aeon) Kain, Traitorous Dragoon Malboro Namazu Trader Ninja's Blades Overkill Phantom Train Poison the Waters Qutrub Forayer Reno and Rude Resentful Revelation Sephiroth, One-Winged Angel (Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel) Sephiroth, Fabled SOLDIER (Sephiroth, Fabled SOLDIER // Sephiroth, One-Winged Angel) Sephiroth's Intervention Shambling Cie'th Shinra Reinforcements Yiazmat, Ultimate Mark (Sidequest: Hunt the Mark // Yiazmat, Ultimate Mark) Sidequest: Hunt the Mark (Sidequest: Hunt the Mark // Yiazmat, Ultimate Mark) Summon: Anima Summon: Primal Odin Tonberry Undercity Dire Rat Vayne's Treachery Galian Beast (Vincent Valentine // Galian Beast) Vincent Valentine (Vincent Valentine // Galian Beast) Vincent's Limit Break Shinryu, Transcendent Rival (Zenos yae Galvus // Shinryu, Transcendent Rival) Zenos yae Galvus (Zenos yae Galvus // Shinryu, Transcendent Rival) Zodiark, Umbral God Barret Wallace Blazing Bomb Call the Mountain Chocobo Choco-Comet Ifrit, Warden of Inferno (Clive, Ifrit's Dominant // Ifrit, Warden of Inferno) Clive, Ifrit's Dominant (Clive, Ifrit's Dominant // Ifrit, Warden of Inferno) Coral Sword The Fire Crystal Fire Magic Firion, Wild Rose Warrior Freya Crescent Gilgamesh, Master-at-Arms Haste Magic Hill Gigas Item Shopkeep Laughing Mad Light of Judgment Mysidian Elder Nibelheim Aflame Opera Love Song Prompto Argentum Queen Brahne Random Encounter Raubahn, Bull of Ala Mhigo Red Mage's Rapier Sabotender Samurai's Katana Sandworm Seifer Almasy Self-Destruct World Champion, Celestial Weapon (Sidequest: Play Blitzball // World Champion, Celestial Weapon) Sidequest: Play Blitzball (Sidequest: Play Blitzball // World Champion, Celestial Weapon) Sorceress's Schemes Summon: Brynhildr Summon: Esper Ramuh Summon: G.F

This lets you quickly play out a large number of bomb rare creatures (20 total rare or mythic creatures, all with powerful abilities)
Budgeting Like a Pro Volo has a few creatures he labels as "Game Finishers" categorized in his journal
Ifrit Esper Origins // Summon: Esper Maduin Summon: Fat Chocobo Summon: Fenrir Summon: Titan Joshua, Phoenix's Dominant // Phoenix, Warden of Fire Terra, Magical Adept // Esper Terra Best Summon Cards Summon: Bahamut Summon: Bahamut is an expensive flying nuke: A 9-mana colorless saga dragon that blows up permanents twice, draws cards, then hits every foe with the total mana value of all other permanents you control
There are also 18 enchanted treatments: 12 for the new cards
Bant Rhythm (1.9% of the Winner's Metagame) 4 Sewer-veillance Cam 4 Badgermole Cub 4 Bloom Tender 4 Brightglass Gearhulk 4 Stormchaser's Talent 4 Botanical Sanctum 4 Hallowed Fountain 4 Starting Town 4 Temple Garden 4 Boomerang Basics 4 Nature's Rhythm 3 Seam Rip 2 Nurturing Pixie 2 Breeding Pool 2 Floodfarm Verge 1 Mockingbird 1 The Jolly Balloon Man 1 Hushwood Verge 1 Plains 1 Willowrush Verge 1 Cryogen Relic 1 Shardmage's Rescue 3 Erode 2 Disdainful Stroke 2 Sage of the Skies 2 Spell Pierce 2 Aang, Swift Savior 1 Seam Rip 1 Meltstrider's Resolve 1 Soul-Guide Lantern 1 Shardmage's Rescue Bant Rhythm relies heavily on the mana acceleration from Badgermole Cub to flood the battlefield with cheap creatures while ramping toward a game-ending payoff