With two Darkness Temples strengthening his Sea of Darkness, Nial was extremely powerful. He was in possession of several means to increase his strength even further and he was finally able to use the full power of the Tier-3 Forgotten Runic Armaments as well.
There was no reason for him to be scared about his destination because there weren't too many things that could obliterate him in an instant. At least, most things that were capable of obliterating him in an instant shouldn't be too interested in something like him.
Nonetheless, he was a bit nervous because the isolated stellar system ended up being so far away off from the next closest stellar system with planets that may harbor intelligent life, capable of teleporting through space. It had been quite a while since he encountered any other intelligent races with Originals of a high rank and it was about time to actually meet some people!