Engine

Agreed. It's my favorite Ozzy album post-Randy Rhoads. Another underrated one is The Ultimate Sin which does suffer a lot from Ozzy being an addicted sellout but an album with that cover art can't be all bad. There are a few great moments.

Speaking of late 80s metal cheese that is somehow good, I also have a fixation on Cold Lake by Celtic Frost and I recently watched this whole concert from that era. They play their other songs that people actually like here too, and I think it's a cool incarnation of the band:

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Like an arrow,
I was only passing through.