While I continue to try and understand what just happened with @[member="Isis Fontana"], here's a list of the specific things Krest can teach you. @[member="Solan Charr"]
Ranking from lowest to highest.
Learning (Can't use it in most situations, specifically combat) -> Apprentice (Can use it in combat or otherwise, but the ability is lacking) -> Knight (Basic understanding and use) -> High Knight (Advanced understanding and use) -> Master (Need I explain?)
SKILLS:
Unarmed- Knight
Swordplay- High Knight
Ranged- Knight
Stealth- High Knight
FORMS:
Juyo- High Knight
Ataru- High Knight
Shii-Cho- High Knight
Niman- Apprentice
Shien- Apprentice
Sorsresu- Apprentice
Makashi- Apprentice
POWERS:
Force Sense- Knight
Force Telekinesis- Master
Force Jump- High Knight
Force Speed- High Knight
Force Barrier- Knight
Force Deflect- Apprentice
Control Rage- Knight
Art of the Small- Learning
Beast Taming- High Knight
Alter Element (Earth)- Knight
Anything apprentice up.