To elaborate on the Ether, it normally goes through everything, but when affected by the magic of a magician, then it becomes whatever they channel it to be. It cannot be stored outside of the human body, and even if stored there for too long it will give the user Ether fever, which starts like a cold, then flu, then kills you. It can only be stopped by removal of the magic from the body by a healing priest, or a tuner can do it to themselves if they are still conscious.
An Ether manipulator (EM for short) can either pull in Ether around it, making magicians in its radius more powerful as they have far more Ether to draw upon, or it can push all of the ether around an area away, rendering magic impossible near it.
They are powered by the energy of a magician, and will need charging occasionally, but how often depends on how much energy is given by the magician in question. Give too much, and they might die, however, so they have to be careful. I''m thinking this is basically like the tempest in Skulduggery pleasant : Kingdom of the Wicked, the one that powers Argeddion's cage and the magical cannon thingy they use to stun him later on so that Kitana, Sean, and Doran can attack him.
Anything else anyone wants to add, I can try and change it and make it science-y.
