User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-29552261-20170510191451/@comment-30462510-20170511185901

I think you're talking about the scleras so I'm just gonna go with that.

So like Shera? She may only be a disciple while Lucius is a full god, but she's the only one I know of that can do that. Maybe the black scleras are a side effect of releasing all of their power.

I'm not sure if Lucius is a similar situation. Same with Tilith. Like I said earlier, it may just be a gate manipulation thing. But I am curious as to what they would look like if it is a side effect and they did release all their power.