Ultra: Dragon Fang at the Beginning, Infinite Evolution

Ultraman + Kamen Rider Ryuga + time travel + upgrade + fast pace + swallowing evolution + card system + mirror world Traveling through the Ultra world, Linn gained the power of dragon teeth. His path is completely different from that of the Warrior of Light: defeat the enemy, plunder their power, and use it for your own use! Star cluster: "Is this dark force an enemy or a friend?" Leo: "Please, come and train with me!" Beria: "Boy, your darkness is very interesting, come be my subordinate!" Tartarus: "Why is your time ability not included in my prophecy?" The dark dragon roars across the world, devouring the cores of cosmic dinosaurs, evil gods, and even the ultimate life form! Amperra, Gatanjie, Hypajton, Glizza... Will all be food for the evolution of the dark dragon! When the Kingdom of Light faced a crisis and Nexus, Zero, and Zeta were defeated one after another, a dark knight tore open space and descended on the battlefield. "Tartarus, I accept your core!"