Spoiler stuff...
"The first prerequisite for getting the sigil is having all
of Wakka's Overdrives unlocked, so this means you have to start playing
Blitzball tournaments until you get them all. Once all Wakka's Overdrives are
under your belt the 'Jupitier Sigil' will randomly become a tournament prize."
Okay..so I have the NO AP World Champion after winning 5 games.. the faq says that I need all of Wakka's overdrive.. another faq says that you play 20 games (do you have to win?) and you get his overdrive.. he has 3 different over drives beyond elemental reels.. making 60 required games? and then randomly become a tournament prize....how will I know when it's the tournament prize?
So if this is correct.. 60 games.. about 12 minutes each (with halftime/etc)..12 hours of blitzball in order to finish PART of wakka's quest for his sigil..? Hopefully wins aren't required -.-