After an awfully long time of searching for a Baleful Aura, I was able to successfully find and buy one. One of the main reasons I wanted it was because of the purple haze circle that appears below your feet.
However, contrary to what the wiki page said and showed, this circle is not visible. I am unsure if this is a bug or the said feature no longer exists. I'm curious if somebody could look into this and see if the wiki page itself is no longer accurate.
I can provide screenshots if needed, but they wouldn't prove much. The aura is attached to a Surge Raiment.
If necessary, you can meet me in-game to see it. (IGN: Menish)
Problem was my graphics setting. Dracora wins.
Try setting your graphics to high. Certain effects don't show up for lower settings.