Evoker is a Dungeons and Dragons term for a Wizard who specialises in Evocation. The original Dungeons & Dragons set Dungeons & Dragons (abbreviated as D&D or DnD) is a fantasy role-playing game (RPG) published by Gary Gygax and David Arneson in January 1974. ... Gandalf, from The Lord of the Rings, is an example of a well-known, traditionally literary wizard. ... Evocation is the magical art of calling forth spirits to do the bidding of the magician or provide information. ...