User blog comment:Lesdin/Adara, the Calamity Adherent/@comment-26815373-20161117001622/@comment-27802145-20161119053242

I'm glad to hear you like the idea. It was originally intended for another mage champion in the works, but I thought that angular invulnerability held too much potential to be just an add on to a champion, hence its incorporation into Adara, whom I think utilizes it much more centrally.

Angular invisibility sounds like a cool idea, though I suspect that it might be optimal to add some minor fade-in/out times to the effect, as sudden, but minor periods of invisibility may prove to be both OP, or useless, depending on the situation. I look forward to how you'll implement the effect.