Talk:"Galaxy Wars: Fathomless Ocean"/@comment-184.175.2.205-20140313213635/@comment-18942112-20140313215128

Read up a little bit:

"Defeat Pisces at random encounter after defeating Pisces [Fallen] at level 21 and above. Chance to obtain her is random, but those who dealt more damage to Pisces will have a higher chance of getting her."

Meaning, any level 21 Pisces [Fallen] and higher have a chance to upon defeat show (pure) Pisces which then can be defeated for numerous rewards.