Seeker Zusshi

Seeker Zusshi is a grand master Pet Tamer located at the edge of the lake in the Fields of Niuzao in the Townlong Steppes of Pandaria. He is surrounded by his three level 25 battle pets: Diamond (elemental), Mollus (critter), and Skimmer (aquatic).

Defeating him is required to complete the Taming Pandaria achievement.

Quotes
The water never lies.

Quests
Grand Master Zusshi