Also the use of magic by any of the groups in my stories comes with a price. The more you use, the more energy you drain away from yourself. This leads to the Kingdom nicking good ideas from Earth and other worlds it watches as where it can use machines to save magical energy, they will.
With the Fairy Queen in overall charge, partly because she has the most amount of magic, that allows for the Witch being envious and plotting to steal the monarch's crown and magical powers. Because the Witch knows the Queen, and Eileen, would be able to challenge her successfully, the Witch has to use guile to bring about her wishes. I think that makes for a more interesting story as guile can succeed or go wrong and there are then consequences for the character to deal with.