The regex for this (for left-facing creatures) is ^[aeimpvy][bcfgjknqtw]*[dhloruxz]$ Unfortunately, as you point out, all the vowels are in the end segments, s

The regex for this (for left-facing creatures) is ^[aeimpvy][bcfgjknqtw]*[dhloruxz]$ Unfortunately, as you point out, all the vowels are in the end segments, so there's no creatures with a midbody longer than 2 letters. Here's what you get [0]: ad ago ah and ankh awl ax ego eh end er etch ex id inch into itch However, you can also include words that form multiple creatures [1]. Some favorites: aggrandizer alexander equalizer inlander mumbler phalanx poacher prelingual voided 0: https://regexdictionary.com/regex?r=%5E%5Baeimpvy%5D%5Bbcfgjknqtw%5D*%5Bdhloruxz%5D%24 https://regexdictionary.com/regex?r=%5E%5Baeimpvy%5D%5Bbcfgj... 1: https://regexdictionary.com/regex?r=%5E(%5Baeimpvy%5D%5Bbcfgjknqtw%5D*%5Bdhloruxz%5D)*%24\ https://regexdictionary.com/regex?r=%5E(%5Baeimpvy%5D%5Bbcfg...*