I feel like we should have an option for Hand in the Box. Stroke Charlotte's head to calm her down. If successful, fear is removed. If failed, she is startled and loses more defense or misses her next attack and hits the hand instead.
How Hand-in-the-Box works is that if its bar is filled, he can release 100 piercing damage to the opponent. The only way its bar can be filled is if the player can land Red or Green attacks on the opponent.
Fear does go away after some time, but the effect of low defense is permanent until switched out.