3 Chaos, the Endless Clive, Ifrit's Dominant Cloud, Planet's Champion Esper Terra Firion, Wild Rose Warrior Freya Crescent Garland, Knight of Cornelia Gilgamesh, Master-at-Arms Giott, King of the Dwarves Gladiolus Amicitia Ifrit, Warden of Inferno Joshua, Phoenix's Dominant Kefka, Court Mage Kefka, Ruler of Ruin Kuja, Genome Sorcerer Lightning, Army of One Lightning, Security Sergeant Phoenix, Warden of Fire Prompto Argentum Queen Brahne Raubahn, Bull of Ala Mhigo Rydia, Summoner of Mist Seifer Almasy Shantotto, Tactician Magician Tellah, Great Sage Terra, Magical Adept The Emperor of Palamecia The Fire Crystal The Lord Master of Hell Trance Kuja, Fate Defied Vaan, Street Thief Vivi Ornitier World Champion, Celestial Weapon Zell Dincht Zidane, Tantalus Thief
Ugin has the chance to break that up, potentially chewing through those cards in quick order.
The first creature in line gets +0/+0.) Enchantment Boom (CTRL to add secondary) Draw Abundance If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind
Where it gets really interesting, though, is when you consider the sheer amount of cards that can combo with it