A sculptor and graphic artist as well as an author, Zell has created numerous images of Pagan deities—some based upon historical images, others his original creations. With his family, he created Mythic Images, a business through which his artwork is distributed. Zell was an early popularizer of the term "
Neo-Pagan". When
Green Egg began publishing as a
spirit-duplicated newsletter, Zell used the term "Neo-Pagan" to describe the
new religious movement he was helping to create.
Green Egg later grew to be a semi-glossy magazine with international distribution and, in an era before the Internet, its letters column provided a widely distributed public forum for discussion and networking.
Grey School of Wizardry Oberon is the founder and Headmaster Emeretus of the
Grey School of Wizardry, an online school specializing in the teaching of a wide range of ancient wisdom and esoteric magic. In November 2022 he passed the title and mantle of Headmaster to his protege, Nicholas Kingsley. Zell continues to teach in the School, and remains President of the Board of Directors. The Grey School incorporated on March 14, 2005 as a non-profit educational institution in the State of
California. The school grew from lessons originally created by the Grey Council, a team of two dozen practitioners, who with Zell, wrote the
Grimoire for the Apprentice Wizard and later the
Companion for the Apprentice Wizard. While initially conceived for ages 11–17, the school currently has mostly adult students. The school comprises sixteen departments of study, various clubs and organizations, a forum area, a prefect/captain system, opportunities for awards and merits and a house/lodge system for adults and youths in which they can communicate directly with each other. Youth (under 18) students are grouped into the house of Psyche. Adult (18+) students are sorted into four lodges: Society of the Four Winds, Order of the Dancing Flames, Coterie of the Flowing Waters, and Circle of the Standing Stones.
Speaker and teacher Zell regularly presents workshops, lectures, and ceremonies at NeoPagan events. He and his late wife
Morning Glory have appeared at more than 40
Starwood Festivals and WinterStar Symposiums over four decades, and maintained a Church of All Worlds presence at Starwood, called the CAWmunity, for over a decade. From 1998 to 2014 Oberon and Morning Glory Zell lived in
Sonoma County, California, where they were members of the Sonoma County Pagan Network. He was a frequent speaker at the organization's local activities, served on the Board of Directors, and contributed articles to its website. ==Health==