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

Slightly more interesting than the previous four battles, but by no means harder. I used two Stamina Tablets on Auron and Wakka for the simple reason that there was nothing else for me to do on the first turn; after that, it's a simple matter of throwing Supreme Gems and switching out Rikku after each fifth Gem so Yuna will eat the counter-attack instead.