How to defeat Shinryu?

[Tavrobel]

using tidus's overdrive three times kills him.

i didnt have his celestial weapon though

You don't need the Celestial Weapon for Shinryu, since he doesn't randomly reduce armor. Also, I was referring to doing 100k with Attack Reels in Bobo's post.

Worked for me once :P (After that I leveled up and didn't need that strategy)

They [the players] aren't going to be that low. I don't question your strategy, I question your level.

Difference.