Board Thread:Manga Discussion/@comment-45864355-20200525010402/@comment-38952966-20200525020057

Diavolo never stabbed himself with the Requiem arrow, it just looked like it did because Bruno killed Chariot Requiem.

Let's not forget Star Platinum literally making up new abilities 2 or 3 times throughout Stardust Crusaders because Jotaro had the strongest plot armor.