Trial 583

Walkthrough
Defeat NM Ratatoskr 4 times in Fort Karugo-Narugo (S).

Trade your Mozu (Attack +3) to the Magian Moogle in Ru'Lude Gardens to accept this quest.

He will give you back your, Mozu now inscripted with Trial 583.Once you are finished killing the Mobs, trade the Mozu (Attack +3) back to the Magian Moogle and you will recieve your new katana, Mozu (Attack +5).

Everyone in party with quest started and have Mozu (Attack +3) equipped will receive credit for the kill as long as you are within xp range.