This guy (In reality, it's Raditz with a beard.)
He claimed to be able to open ALL EIGHT GATES, WITHOUT CHAKRA AND STAMINA LOSS. Guess what? He lost to Base Naruto and Base Sasuke. He had access to something that could conquer the whole Ninja World, the most deadliest Jutsu that makes you die...without dying. He wasted it.
Such a shame, i'd like to see him to show full power of Eight Gates.