For those of you who dont know all the testimonys are for a limit break 5 you need to trade the testimony according to your level 70 job in order to be able to level from 70 to 75 you fight a NPC named MAAT in rulude Gardens your subjob is reduced to level 0.
They aren't that rare >_> It just seems like that when you are actually looking for one. I've seen tons of testimonies drop in quicksand caves (BLM, WAR, PLD, and RNG) over two levels of duoing as a BST with no TH.
what are these for? there seems to be one for each job all dropped by the highest lvl yagudos in castle oztroja. I would assume its for some quest, maybe unlocking some JA? or AF2?
These are required to begin the final level cap quest. They are consumed before you commence a fight with Maat and you lose it whether you beat him or not. So basically people go absolutely insane looking for these Testimony drops (which are very, very rare) so they can reach level 75.