Tethered Will
~Whenever your demons are about to take damage from an avoidable attack, moving will
cause your demons to run out of the area to be affected.
In Legion, I think the mark of a good Demo Lock will be that he micro-manages his demons to keep them alive as long as possible in order to do maximum DPS. This talent would allow players who do not want to click extra buttons (command: move) to keep their demons alive, and it would allow players to save their demons while simultaneously avoiding damage themselves.
What do you think?