The Dragon 20

The Dragon issue 20, "Horrible Halloween Issue", was released in November 1978. It contained the following articles related to the Forgotten Realms:

Another Look at Witches and Witchcraft in D&D

 * By Ronald Pehr. p. 13

A neutrally aligned Witch class based more on nature worship than pacts with darkness. Includes new class spells and abilities.

Demonology Made Easy

 * By Gregory Rihn. p. 15

A comprehensive look at demonology: rules to research summonings, rituals and sacrifices, pacts and bargains, and the price of failure when a summoning goes awry.