I think the last one is the best so far but I have some critics.

First of all it isn’t very clear that the wand is a wand and not a black pencil. But I don’t know how to make it more evident. Maybe with a different kind of wand.

Your round shape reminds me the Tao simbol and I think the relationship between the words you are creating is something like the relationship between yin and yang. In this way you are saying that the pencil and the magic are like two faces of the same medal and they are equally important. But in a previous post you have said that magic is more important that the pencil in the game. Maybe you should make it more clear from the logo. But it depends on what you want to transmit with your logo.

I agree with Surrealix, JakeM and Mathmo that a single font is better. From a typographic perspective there is nothing that link the two word: font, dimension, color, effect applied... Choose one font and use it for both words.