Eu recomendaria Wisdom, com base em como essa capacidade é descrita nas regras:
A character with high Wisdom has good judgment, empathy, and a general awareness of what’s going on.
Wisdom Measures: Awareness, intuition, insight (p. 8 Basic Rules)
Wisdom, measuring perception and insight (p. 57 Basic Rules)
A Wisdom check might reflect an effort to read body language, understand someone’s feelings, notice things about the environment, or care for an injured person. (p. 61 Basic Rules; Credit to @Christopher for pointing that out!)
Verificações de habilidade para sabedoria (pg. 58 Regras básicas)
Animal Handling, Insight, Medicine, Perception, Survival
Em comparação com o Carisma, veja como isso é descrito no livro:
Charisma Measures: Confidence, eloquence, leadership (p. 8)
A character with high Charisma exudes confidence, which is usually mixed with a graceful or intimidating presence. (p. 9)
Charisma, measuring force of personality (p. 57)
Verificações de Capacidade para o Carisma (pg. 58 Regras Básicas)
Deception, Intimidation, Performance, Persuasion
Como um mestre, você decide. No equilíbrio, a Sabedoria parece vencer o Carisma.
(a linguagem PHB é a mesma das Regras básicas)