Challenge description:
http://www.femlob.com/redir/ff10nsgnsno/

What you don't see in these videos is that by the time I fought Sin, I had captured five of all but Inside Sin's monsters (actually, I'd already captured five Wraiths, Demonoliths and Adamantoises too - but who's counting); what you do see is the effect of BFA equipment in action. Auto-Phoenix on Auron takes care of any preparation you might otherwise have had to do, and Auto-Haste on Rikku ensures everything will die swiftly.