Those ability names are a little off.

Break 9999 Damage should be Break Damage Limit, 3x Overdrive should be Triple Overdrive, Avoid Counter should be Evade & Counter, MP Cost 1 should be One MP Cost and Pre-emptive Attack should be First Strike.

Also, how much you need to pay Yojimbo to do his attacks depends on your "friendship" level with him. If you treat him right, it's possible to get him to do Zanmato right after summoning for free. However, the price also depends on the strength of the enemies. I know of a few people who made Yojimbo so happy that he basically does Zanmato on everything after being paid 1 gil.