After completing

use Spearmarshal's Plea to return to the Griffon Sanctuary in Domain of Vabbi. Place the Writings of the Last Spearmarshal in the marked spot and unlock the next part. Here you will need to defeat the Champion Mordant Crescent. At every 25% HP interval, the champion will become invulnerable. Get on a griffon, glide over to the champion and use Skill 1 to break the shield. Continue to DPS him down until he is defeated.

• Action

  Writings of the Last Spearmarshal

  Place the Writings of the Last Spearmarshal in the marked spot
• Kill

  Mordant Crescent

  Defeat the Champion Mordant Crescent
• Achievement

  The end!

  Receive your own Griffon