Everyone has Aptitude, I'll list any other non-DLC skills here (but most of them aren't great). Everyone is on hold but they still have weapons - if you're in the early game, I'd suggest using the left side approach since there's no units there.
Castle code: 06761-74018-05103-64271
Shigure: Bowbreaker, Air Superiority, Even Better, Darting Blow
Hisame: Replicate, Duelist's Blow, Vantage
Selkie: Lancebreaker, Axebreaker, Shurikenbreaker, Swordbreaker
Rhajat: Tomefaire, Future Sight
Percy: Quixotic, Strength+2, Lunge
Kiragi: Even Better, Swap, Seal Defense, Quick Draw
Mitama: Miracle, Rally Luck
Kana(F): Dragon Fang, Quixotic, Nobility, Better Odds
Asugi: Quixotic, Sol, Astra, Locktouch
Ophelia: Astra, Malefic Aura, Heartseeker
Happy hunting!