Dark Knights as they are in-game--warriors who use the power of their emotions to draw on magic and wield two-handed swords to punish evildoers--are more or less strictly a product of Ishgardian culture. A Dark Knight is basically Ishgardian Batman, though focused more on straight-out "pay evil unto evil" punishment than justice.
Dark Knights don't use void powers. They use their own internal source of aether to fuel the magic they have access to, and the Dark Knight soul crystal channels and focuses their darker emotions to provide form for the spells.
If your goal is to be a "magic knight" type of character, then your character will either need a background in a magic class, a Paladin (in which case the magic isn't offensive magic but defensive conjury), or mentored by a Dark Knight.
Dark Knights don't use void powers. They use their own internal source of aether to fuel the magic they have access to, and the Dark Knight soul crystal channels and focuses their darker emotions to provide form for the spells.
If your goal is to be a "magic knight" type of character, then your character will either need a background in a magic class, a Paladin (in which case the magic isn't offensive magic but defensive conjury), or mentored by a Dark Knight.
