Three's a Party

Here in the Realm of Shadows, Sunny was at home. It was a dire and perilous home, but a home nonetheless. Not only was his body and Aspect empowered by being here, but there was also a torrent of spirit essence flowing into his soul. 

That was why his ability to manifest shadows had become more powerful than it had ever been, and why he was able to summon such an enormous Shell. 

The vast Shell was formless, lacking a structure. But that was also a reason why he could build it, and make it span hundreds of meters — not at all inferior to the great expanse of the appalling Darkness Creature. Better yet, there was no risk of losing himself, since he was not delving into the essence of a foreign existence.

Instead, he was simply adhering to the shapelessness that was inherent to all shadows. And as a shadow himself, Sunny was no stranger to that shapelessness.