These won't necessarily be shown next to the skills in the system, however, I felt like it was good to have, for when, example:
He joins a sect or something, and they're talking about the different levels. Each level will have Low, Mid, High, and Peak.
So, without further ado, here they are.
{Cultivation Manual/Martial Art}
{Yellow Grade}
{Black Grade}
{Profound Grade}
{Human Grade}
{Earth Grade}
{Sky Grade}
{Heaven Grade}
{Divine Grade}
{God Grade}
Very standard, I know, but here they are nonetheless.