Ultraman: Cosmic Superman, Open Your Eyes!

My name is Duke. Having just transmigrated to the Gaia world, I received a cheat code from the Earth's will: I can borrow power from other Ultramen, and even possess Ultramen who borrow power. Monster battles lead to evolution, and my strength is infinitely stacked! Gatanothor: "What do you mean Tiga is emitting a super-powerful Earth light? Kids, can I still win?" Dark Zagi: "What do you mean the Earth light has evolved Nexus into its ultimate form? Kids, will I be resurrected?" Lugiel: "What do you mean the Mysterious Four Ultra Spark Dolls have been materialized by the Earth light? Kids, should I go and make peace?" Destruction Bringer: "Invading Earth! Earth has recently created new Ultra Warriors; they seem to be able to transform into many forms, but they're all flashy and lack real power. Kids, watch me send people to conquer Earth and dominate the universe!"