From Pluralpedia, the collaborative plurality dictionary
tulpamancer (n.)
Synonymstulpa creator, tulpa host
Applies tosystems, headmates

A tulpamancer is an individual or system who practices tulpamancy. This may refer to a person who creates a tulpa (through a process known as forcing), but may also refer to anyone who participates in actions that allow tulpas within their system to be present, active, and well. In parogenic tulpa systems, the original is typically referred to as the tulpamancer, but this is not exclusive to them. Rather, the term can be used as a self-identifier for anyone who deems it appropriate, such as if they are developing tulpa-related skills, such as switching or imposition, or simply because they consider tulpamancy a part of their life.