What can a warcaster measure to within his or her Control Area?
A player may measure his warcaster’s control area at any time. While measuring his control area, a player may determine the proximity of other things to his warcaster. Specifically, a player may measure the distance from his warcaster to any other model or any point within the warcaster’s control area, at any time. He is not limited to only determining if a model is within his control area or not. The rule is open-ended because a player may make the measurement at any time for any reason. However, this does not mean a player can measure the distance between any two models within the control area. Some spells, like Fog of War, make it virtually impossible not to be able to measure your control area frequently, thus it is necessary to allow such measuring at all times. Keep in mind, if you make a measurement the information must be shared with your opponent as well, so he will know how close you are as well. Experienced players will keep in mind that overly using this ability may telegra
