i have a copy of iron man by black sabbath on my itunes and it sounds very differnt like more heavy and more cords. Also the date says its from 1991 and from the iron man album. the weird things is that this is not listed on Wiki on their discography. what is the deal with this song (i mainly want to know to find the tab)
Is it a cover? Or a remix?

EDIT: Or, could it be a live version? I recall that it could be Sabbath reuniting at Ozzfest or something, and Iommi may have been tuned to Drop C#, due to his fingers? It sounds like a possibility.
Black Sabbath doesn't offer digital downloads from the ozzy years so you probobly have a live ozzy version or reunion version or something