Asura160

You can't have a harem with no threesomes and orgies with the harem or why have that many?

He gained the ability to make clones and the combined attack technique of big mom and kaido

[The ability to clone yourself, the moves to dominate the sea! ] This was in the beginning in the raws

Katakuri

Kaido

Or the fruit that the doctor from the black beard crew have

This is a translation

buy some for private time in the future

or just get the fruit it should reappear nearby after killing walpol give it to Franky in the future

Make him have an underground king identity like the Joker or those five kings of the underworld where he sells metals and ore and stuff and becomes super rich the mineral king sounds nice