It is very important that you have two styles of combat. The reason for this is if our opponent prays melee for example, you can pull out range or magic and destroy them. Basically just using whatever the opposite of they are praying. Below are various gear setups that are suggested, you can try mixing and matching to figure out what you think is best. If you have no patience for that then use one of the setups below:
Also, here are some possible action bar setups, feel free to do what you think is best: