Paulo "The Natural" Costa, is in fact a clean athlete.
Anyone can achieve this physique by bench pressing and deadlifting on a daily basis, as well as eating salads and lots of meat/chicken/fish.
His physique isn't unattainable naturally. You geeks on here just think because you've been genetically shat on for gains that if you anyone works out as hard as you do they must achieve the same results as you do, if they get better results than you, it's because they cheated lol.