They say that music can soothe even a savage beast. That is the essence of Charm-based attacks: provoking and exploiting the social impulses of others to serve your own ends. The means can range from simple suggestion to advanced hypnosis. Charm can be a powerful stunning or demoralizing weapon that bypasses physical defenses, but also can be used to aid others. Those who are easy to manipulate will be the easiest targets; those who are insane, singleminded or difficult to communicate with, the hardest. Entities completely lacking social behaviour will be immune.