It's really not that fun of a mini-game though. I mean, it's not that exciting. To me, at least.
And the Wyrmhero Blade's definitely not worth it. By the time you get it, all of the optional bosses (maybe not Espers) will be gone.
And if you're doing hunts and a lot of the other side quests chances are you have equipment that is as good, if not better by that point as well:mog:
"geroeen, pulsa nyet, tolska tanee pre chem"
"Beauty is a perception tainted by ego;
Love is an extension of great emotion;
Fear is the result of uncertainty;
Sadness is a collection of misery."