Because Madara is a transmigrant and he had both transmigrant power in 1 body, (hashirama's) sage mode[a body that can wield natural energy] and had the other rinnegan I suppose. Obits was just an ordinary uchiha w senju DNA and a rinneganI want to know why madara looked different than obito when he absorbed the tailed beast power. Madara looked more like the sage of six paths and obito was just a jinchuuriki someone please explain this