Creatures (24) 1 Solemn Simulacrum 1 Mulldrifter 1 Soulbright Flamekin 1 Architects of Will 1 Reassembling Skeleton 1 Grave Titan 1 Nin, the Pain Artist 1 Azure Mage 1 Baleful Strix 1 Disciple of Bolas 1 Bloodsoaked Champion 1 Cryptbreaker 1 Archfiend of Ifnir 1 Curator of Mysteries 1 Vizier of Tumbling Sands 1 Baleful Ammit 1 Horror of the Broken Lands 1 Wildfire Eternal 1 The Scorpion God 1 Neheb, the Eternal 1 The Locust God 1 Wasp of the Bitter End 1 The Scarab God 1 Nimble Obstructionist Planeswalkers (4) 1 Nicol Bolas, Planeswalker 1 Tezzeret the Schemer 1 Nicol Bolas, God-Pharaoh 1 Nicol Bolas, the Deceiver Lands (39) 1 Reflecting Pool 5 Swamp 5 Mountain 5 Island 1 Shizo, Death's Storehouse 1 Minamo, School at Water's Edge 1 Phyrexian Tower 1 Watery Grave 1 Steam Vents 1 Blood Crypt 1 Graven Cairns 1 Cascade Bluffs 1 Crumbling Necropolis 1 Grixis Panorama 1 Exotic Orchard 1 Dragonskull Summit 1 Drowned Catacomb 1 Command Tower 1 Sulfur Falls 1 Cavern of Souls 1 Thespian's Stage 1 Crucible of the Spirit Dragon 1 Haven of the Spirit Dragon 1 Command Beacon 1 Desert of the Fervent 1 Desert of the Mindful 1 Desert of the Glorified Spells (32) 1 Sol Ring 1 Time Stop 1 Darksteel Ingot 1 Terminate 1 Skullclamp 1 Arcane Denial 1 Izzet Signet 1 Rakdos Signet 1 Damnation 1 Cruel Ultimatum 1 Training Grounds 1 Life's Finale 1 Blasphemous Act 1 Tragic Slip 1 Gem of Becoming 1 Chromatic Lantern 1 Hero's Downfall 1 Swan Song 1 Commander's Sphere 1 Fiery Confluence 1 Mystic Confluence 1 Wretched Confluence 1 Dark Intimations 1 Throne of the God-Pharaoh 1 Gate to the Afterlife 1 Supreme Will 1 Sunset Pyramid 1 Visage of Bolas 1 Torment of Hailfire 1 God-Pharaoh's Gift 1 Imminent Doom 1 Hour of Devastation What do you think

The themes are big dinos and power matters, which are very green
Green understands that survival of the fittest makes the whole of nature strong, and white is willing to fight to defend its people and its beliefs
If its late in the game and you have enough mana for X to finish everyone off, cast Ribbons to get the job done
Creatures also often have 'Lords', which can buff an entire MTG creature type
Combine that with a fun game, collectibles popularity, and a good price point, and it really worked