Deathfin Zial

Deathfin Zial was a legendary Deluvian Deathfin from the Sons of Baal monastery, known for his dry wit, prowess in combat with Dragons and creating the Scroll of the Short Strike. Popular legend held that he had killed a Great Wyrm in a single strike, but in truth this was a conflation of two distinct stories: his fending off a Great Wyrm and his stunning an adult Dragon in a single strike long enough to break its neck.
1400 years after he authored his scroll, Deathfin Vazilai, a longtime admirer, planned to learn this technique, but was sidetracked by Blibaal.