As a transmigrator, Lan Ze's greatest golden finger isn't his ability to copy any creature's powers. It's that whenever he introduces a film series, he gains a corresponding ability template.
The best thing about these templates is that each one gives him an extra life, and he can perfectly combine all the abilities loaded into it.
Just imagine: take Smaug from The Lord of the Rings as the base, then add Superman's Kryptonian physique, Ant-Man's hundredfold growth, Hulk's rage-fueled strength, the Flash's faster-than-light speed, and Wolverine's healing factor. What are superheroes worth then? As long as the strongest creature in the world still exists, it'll definitely be me!