Place it right after a character issues the challenge, before any reaction shot lands. Lead in with the Dun Dun Dun Sound Button for the standoff, then follow the duel with a Classic Punch Sound Button hit when one fighter stumbles.
Über diesen Sound
This clip is an 11-second swordfighting performance built from repeated steel-on-steel clashes, scrapes and swings, recorded as Take #4. It feels tense and theatrical, like a staged duel getting faster and messier rather than ending cleanly. The recording was performed courtesy of kalbright3275 and assembled using Audacity.