So I lied yesterday…
My sorceress isn’t level 40. She’s level 60 and I’ve finished Nightmare difficulty. First I trained at Shenk on normal for a while, and then continued to Baal runs. When I reached level 40 I decided to try nightmare. Using frozen orb and teleport made nightmare a breeze for the most part. Act V was the only problem because it introduced ice immune regular monsters. However, these were rare, so it wasn’t hard to avoid them. Right now frozen orb is maxed, and I’m investing points in meteor. I’ll try to make an Insight pole arm for my mercenary, so I can use another staff. Right now I’m doing nightmare Mephisto and Countess runs.