Dragon Ball Z Kakarot: Namek Sage; Frieza Final Form (Vegeta and Goku)

We get to fight the ever more monstrous Frieza. A being that has yet to ever find someone to push him to this form. Even now just changing for “the fun of it”. Although worth noting he was told never to fight Lord Beerus, God of Destruction Universe 7. The other being Majin Buu.