In the Nabata Desert Level (Living Legend), Use a thief or Canas and move him to the area near the place where you first see Hawkeye. Move him to about 4 squares left of the bottom right of the screen and you will find an Ocean Seal. This seal can change a pirate (Dart) to a Berserker. If you train Dart to level 20 and then use the Ocean Seal on him, than he will become significantly more powerful than Hawkeye.