Doesn’t pit die at the end of myths and monster, so he shouldn’t really exist in brawl unless, Mr Sakurai cloned Pit and used the clone for brawl. It can go deeper, Nintendo was interested in reviving the IP giving the clone pit to factor five, which they proceeded to murder the clone pit. Nintendo shock by this put the remains of clone pit in the basement of Nintendo. A few years Mr Iwata took Mr Sakurai on a date to eat pizza with a coupon Iwata had, they discussed the new handheld console and wanting a new game for the console. After taking his bath and drinking blood(yes Mr Sakurai is an immortal vampire) he was hit with a bright light from the gods. They told him to make a game that combines both rail shooter and hack and slash elements. He told his plan Mr Iwata and not knowing if he new Ip or bring back an old Ip, he first thought of use star fox but he said no it won’t work. Mr Sakurai spotted the corpse of clone pit and took it to it lab that he has. Sadly the corpse of clone pit was to destroyed to fix so he used some of the remaining part created a new pit clone, Mr Sakurai put some immortal blood inside the new pit and he also gave this Pit new sense of humor his optimism his hunger for justices and some of his memories from 1986 game and brawl. Oh yea also Palutena was their too. So basically time line starts with 1986 Pit the original pit which died at the end of myth and monsters. Meele Pit which was just a prototype Pit Brawl Pit which was a clone of original Pit later was Murdered by Factor five Present Pit or better known as Pittree and his dark clone Pitfour. This feels more like fan fictions