50%? The only ones I'd count as somewhat weird are: Bredbeddle, Olothec, Time raider, Valok, Voiceless talker, Wardogs, and Xorannox the Tyract. And many of those have direct counterparts in D&D: olothec are aboleths, voiceless talkers are mind flayers, and Xorannox is a named overmind which is...