Well, I'm not sure there's a lot to tell, it's pretty standard. Crosses aren't effective, neither is garlic, but the sun is -- my boyfriend and his brother have rings that protect them, but if those come off they can't go in the sun or they'll die. They've got super speed, super strength, and vervain is poisonous to them. They can also compel non-vampires to do things or forget things, and vervain protects from that too. That's why I want to wear mine -- I'm not worried about anyone drinking my blood, but my sister is a vampire in the dreams and she isn't exactly the type who would forgo a chance to mess with people.