8 – TRAFALGAR D. WATER LAW vs DONQUIXOTE DOFLAMINGO
Law used to be a subordinate of Doflamingo’s. Law and Doflamingo got along quite well, as Doflamingo viewed him as his little brother.
Law later discovered how little Doflamingo actually cares for him and, after the latter revealed to Corazon that he intends to “educate” Law to die for him via brainwashing through the Ope Ope no Mi’s immortality operation, coupled with Doflamingo murdering Corazon, who saved Law’s life by giving him his Devil Fruit to cure his illness, Law defected from Doflamingo, swearing to avenge Corazon’s death.
After the betrayal, Doflamingo wanted Law to die in a terrible manner that he would regret ever being born. The two would already be eternal enemies towards each other due to Law’s nature as a “D.” and Doflamingo’s status as a former World Noble, something Corazon was already aware of.