Ry
Explorer
I don't know how to get a really smooth line like that, but you should watch out for accidentally replacing a smooth line with some very steep stairs. I doubt you're looking for a really stratified world.
I think about 20 feats is about +4 CR, but it's hard to pull out more than +4 CR from feats alone. But YMMV; I don't have the playtesting resources or expertise to retool the progression to a straight line.
I think about 20 feats is about +4 CR, but it's hard to pull out more than +4 CR from feats alone. But YMMV; I don't have the playtesting resources or expertise to retool the progression to a straight line.