There's a lot of recurring themes coming out to play with Rocks.
>Death is what completes a person (Kaido).
Rocks infiltrated Mary Geoise, killed an Admiral, invaded the Flower Room, threatened Imu and used Harald to launch attacks on the Domain of the Gods. On many different occasions he went out of his way to challenge the Celestial Dragons directly. Despite this, he lost once and was then completely removed from history. His grand story retroactively being like it never existed.