#4. The Beast returns to the Octagon
Brock Lesnar is a specimen unlike any other WWE Superstar
After an incredible two-year career from 2002-2004 - one that saw the Beat become the youngest WWE Champion - Lesnar would find similar success in the UFC until 2011, and returned to pro wrestling the following year. By the time UFC 200 rolled around in 2016 though, Lesnar was feeling the MMA itch, and after careful negotiations, was allowed to compete at the historic event, despite being a WWE Superstar.
Soundly defeating Mark Hunt, the win was tainted by Lesnar's doping violation, though with or without any banned substances in his body, it was always likely that Brock would win. With his win, Lesnar would continue his winning ways, demolishing Randy Orton at Summerslam and proving himself a beast in WWE and UFC.