Personally, I've made a plan in my head of what my bindings are, but essentially, only bind things you will constantly be using. First off, bind repeating spells, like fireball, to your hoe. That way you can easily lob off a few while keeping your aim. Then, bind combat useful skills like bolt, megabolt, scan and root with keys near your fingers. R, G, and H are all good and close, making those easy to use. Other skills like port aren't necessary to use on binds, because you're in no rush to use them. However blink should be kept handy as you can easily evade someone with it. Hope this helps