Quote Originally Posted by halfeye View Post
Eh? Surely (I'm not calling you "Shirley"), 21 is the lowest we can set the floor, and that's why it's so low, because it could be higher, but if it was it wouldn't be the lowest it could be.
Nope, the floor is any level we know he's at least that high.

The floor can be set at 1, he started as human, they always have at least 1HD.

The floor can be set at 11, he became a lich, that needs level 11.

The floor can be set at 21, he's used epic magic. That's the highest we can set the floor, because epic casters can do anything with a bit of optimization.

21 is the highest we can set the floor.