First Appearance: First Intermission 17
Molls are animated, nonliving units created by Dollamancy. They have the appearance of statues.
Real World References
In the early 20th century, the female companions (sometimes girlfriends, sometimes not) of (Real World) American gangsters were called "molls" or "gun molls," and the use here as a Transylvitian unit would appear to be a reference to that usage.
A "moll" is also a derogatory term for a woman in some English speaking countries, like Australia.