Unique Traits for Unique Heroes Twisted Traits is a collection of random character traits for the eight core classes found in Four Against Darkness. Each class (warrior, wizard, cleric, halfling, dwarf, elf, rogue, barbarian) has a d20 list of traits, and a list of rare traits. Most traits give a little edge in a specific situation or character development area, or give additional options for combat, magic, social interaction or skill use, or represent rare items the character possesses at the start of the game. Even if some traits interact with the content of other books, the only required book is a copy of the Four Against Darkness core rules.