The only major Vampires we've seen have been: - Dio (Part I) - Tarkus - Brutus - Straights Zeppelli didn't know about that ability. Neither did Straights or Dire or Jonathan in Part 1 and Joseph only knew about it in Part 2 thanks to Speedwagon being there along side Caesar's grandfather and Jonathan Joestar during the entire story with Dio after he became a Vampire after using the Stone Mask to kill the cops and get revenge on Jonathan and George I. Like we've conjectured, its just very odd that Dio manifested this ability, I'm more willing and inclined to believe he rediscovered it rather than created it. Also while Straights witnessed Dio using the ability the first time and Dio is the first vampire to do so in the story, Straights also showed superior regeneration and recovery without needing to absorb human blood/life force unlike Dio. Maybe that was due to him being Ripple/Sendou/Hamon master or maybe simply being a trained martial artist with superhuman abilities BEFORE...