I believe I did this topic years ago, but I don't recall my answer. Anyways the scenario is you have a magic eraser and you can erase one hard rock or metal album by any one band. Now it won't effect the future it just eliminates that one album and the rest of history plays out like normal.
I would without a doubt pick Cold Lake by Celtic Frost. It would eliminate the one black mark on and an otherwise good career.
***What would you pick?