Danzō's most fearsome trait was his right arm: originally belonging to Shin Uchiha, Danzō's arm was implanted with ten Sharingan and was enhanced with Hashirama Senju's DNA.
In episode 358, Danzo uses Izanagi against Shisui and steals one of his eyes, meaning Danzo had a Sharingan eye prior to having Shisui's Sharingan eye.
Danzo already had that arm with 10 sharingan and hashi's cells before the massacre, Orochimaru took it from Shin Uchiha(boruto) and transplanted it to him as well as a normal sharingan in his right eye which he replaced with shisui's.
Danzo's stolen Mangekyo Sharingan from Shisui Uchiha. Because of the stolen Sharingan eyes and the cells from the First Hokage (which Tobi suspects that he implanted them all with Orochimaru's aid), Danzō was an immensely powerful and skilled ninja. He could fight on even terms with Sasuke Uchiha.
Strength: The Master Chief's augmentations allow him to bench 3 times his weight without armor, weighing in at 287 pounds, he would be able to bench 861 pounds. A gorilla, weighing in at 500 pounds, however, would be able to bench an estimated 1,800 pounds (if trained to do so).
Saitama, even ignoring his gag power, could literally put infinite force behind a punch. Saitama's to date most powerful feat was jumping from the moon to the earth in 1.5 seconds, or roughly at the speed of light.
His strength might start at 100 tons of lifting ability, but after 10 seconds, his lifting ability might be 102,400 tons of lifting ability.