[Auron]

Originally Posted by Snaggle_Tongue

Actually, money does matter.
The more you summon him in smaller battles, the more likely he is to do it, regardless of overdrive. Always give him 1000 in these battles.
Say, coming up to a dark aeon, you fight in ten battles and summon him all of these times. Summon him for the dark aeon's battle and give him ten thousand, and it's almost certain you'll get Zanmato.

Edit: Also, Auron, don't scoff me =P For me, at least, that system has never failed.

Why would I do that??????