Where can you find the patterns for things such as Magik circles?
Obviously you can Google it and mostly find those circles that are common such as the solomonic circle and such. However, the best way to get a truly unique pattern custom made just for you would be to aquire the assistance of a spirit familiar. The best in my experience has come from sastan. Ask for a fire familiar who will reveal to you the most intense circle designs unknown to most practitioners. Learning to evoke through flame is the best route(at least it was for me in the beginning)