Dr.Raichi

Personalty
being revengeful and full of spite for the saiyans as well being cunning in the manner of how he distracting the saiyans with destron gas makers in order to gather power for hatchiyack and being so smart as to created beings such as Baby who have their own will and having enough cleverness to made copies of Cooler and Frieza that were convincing enough to fool even very smart people like Piccolo Jr who is way smarter than his father King Picoolo and having years of fight experience from the databases that hatchiyack has gather with scouters and scanners that reach universe wide which this database of knowledge often blocks his human traits that he has. due to overloading processors on the machine he has reincarnated in.

History
Dr.Raichi was the greatest scientist on planet plant before its destruction at the hands of the saiyans. He later created hatchiyack in case his co created projects were to fail such as the Baby and Oren projects and he also made Goddo Gādon with them being designed to protect the hatchiyack machine which was designed by himself to use the power of their hate on the saiyans and use it as a power source to power the machine and form the super fighting machine which is designed to kill the saiyans. Many years later being almost ready to be formed it summons the soul of dr raichi who himself creates fake copies of cooler,frieza,turles and lord slug with the memories only observed by their encounters with the saiyans at the time. Dr raichi using the power of hatchiyack to make the destron gas in order to distract the saiyans while their plan for revenge goes in motion later on. Vegeta kills him and later getting revived in his ghost body and transferring his mind to the body of the weapon hatchiyack with a army Goddo Gādons and his co creations Baby and Oren and his sister at his side who was named Karim and also was co created by him to get revenge on the saiyans

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Power
in his normal body before his death he was weak in power. but after he gets revived his power is made so much more stronger  but still not enough to do anything to base vegeta and to his fake clones of cooler and frieza and when in body of his saiyan death machine he was power greater than sjj3 broly as stated by goku when he fought the death machine using data on the fights gathered so he did knowledge or experience on such and it often hurt his fighting as he can overthink his movements and look to much into fight data which often slows him which was not a issue before he had he had his ingratiated into the machine