Everything seems fine. The level 8 Construction spell "Construction of unique magic artifacts" is still on the list, though I suppose that you deleted one by one the artifacts.
Thank you again, I wanted to play some games without that powerful magic.
I just realized that the load order of this mod and CBM would matter. You may need to append this mod onto the end of CBM. If this doesn't fix the problem let me know what spell I missed.
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Try the dom3editor for easy Dominions 3 mod creation.