The Advanced Atronach originally became know to me with a build known as the Obsidian Sentinel on the Tamrielvault website. It used the restoration loop exploit to double the effect of the Atronach Stone, giving you 100 magicka and 100% spell absorption at the cost of making you unable to regenerate your own magicka, requiring enemy mages or dragons to allow you to draw out your latent power. Since USSEP makes the resto-loop no more and I was itching to play the build again after all these years, I decided to take things into my own hands.

Do keep in mind that I did make a bit of an edit in regards to the effect. Normally with resto-loop it'd only give -100% magicka regeneration, and it can be easily offset with fortify magicka regen enchantments. In order to balance it out I set the value to -1000% instead, making it nearly impossible to get any regen. That's the price of power.

The mod comes in 2 different types. The first just enhances the Atronach Stone effect as one would with resto-loop. The other is for use with Classic Classes and Birthsigns (or the Reimagined version) and replaces the 3rd era birthsign, allowing you to use this mod alongside standing stone mods like Evenstar. You can't use the Classic Classes base and reimagined versions together, but you can use the Sign and Stone versions at the same time if you so choose.

Check this if you're interested in a buff to the Shadow Stone/Birthsign.