(What is this fire emblem featuring Typemoon?)
[@KawaiiKyouko]
Please use actual descriptions for 

Aptitude for Slaughter: B
The endless raids of mongol invaders were synonymous with slaughter, the intention to massacrate corrupted minds for the greater good followed Genghis. And Genghis perfected the art.
Bow and Arrow Creation: C+
Genghis has little problems in creating light composite bows, as often used by the Mongol nomads. A skilled fletcher as well, as a shortage of arrows meant defeat for this cavalry people, though the requirement of real materials for both is an inhibitor.

You can keep what you have but you need to actually put in what they do, and how they do it.

Kurultai of the Khanates isn't innately broken but it can be used to single out archer, and assassin for example and just allow Khan to murder them in singles combat.