What are Dark Seals?
Dark seals are unique certification exam seals that allow a character to unlock the dark mage class, a powerful offensive spellcaster. A character that changes to dark mage will be able to upgrade to a dark bishop later, an even more powerful version of the class.
How to Get Dark Seals
You can get a dark seal by defeating Death Knight in these particular chapters:
- Chapter 4: Assault at the Rite of Rebirth
- Chapter 6: Rumors of a Reaper
- Chapter 8: The Flame in the Darkness
- Chapter 12: To War
- Chapter 18: The Chaos of War
- Paralogue: The Face Beneath (make sure Caspar defeats the Death Knight for a bonus weapon)
An alternative way of acquiring dark seals is to have a Thief unit and steal the dark seal when the Death Knight is already weak. Note that it is important to have a higher speed stat than Death Knight to be able to steal the dark seal from him first. Otherwise, you will need to take him out. Be warned that Death Knight is a formidable foe with strong melee and magic attacks, so defeating him will be a challenge.