Why does Clearsight have a better seer power than other Nightwings?

I was reading the Darkstalker graphic novel and I remembered I asked myself the same question when I read the book.

At first, my theory was that ever moon gave a certain power and one of them was a much rarer "modifier" moon that enhanced the power given by the other moon. It would also explain how Darkstalker also has an improved seer power but is less powerful than Clearsight's as the buff was split between the mind reading power and the seer power. However, this theory was flawed in 2 ways:

1. This means the "modifier" moon can never appear on its own which might be possible but it very unlikely

2. We get confirmation that Clearsight was born under a single moon.

Given that my theory was completely wrong, I am now lost and can't find the origin of Clearsight's enhanced power. Does anyone have any idea?