Could someone explain how the Entropy Cultist ability, Prophecy of Treason, interacts with the Revelation sustain to me? Specifically, the description is: "X% of all damage you take is redirected to a random target effected by the damage link."

I had thought that the damage link was referring to the debuff. In other words, that I would cast this on a target and then that target would take a portion of the damage directed at me. I haven't seen this playing out though, it doesn't seem to work. It also doesn't make much sense that way, because by that method there's no way to have more than one target effected by the damage link.

So... what is the damage link? How does that work?