hey does anybody know any good tabs to learn for metal blues sort of genre.

Dude just practice scales for that. Theres no specific song that will teach you to play at certain genre.
Um, old school black sabbath, like their first 2 or 3 albums were very metal bluesy, as they were originally a type of blues'jazz band. Really cool stuff to check out if you are into blues metal. I guess they way it goes is the guitar player (tony iommi) was a blues player, but they were improvising and i guess his blues improv was heavy and somewhat, dark for the times!

note: They were originally called the Polka Tulk Blues Company, later shortened to Polka Tulk, then later, Earth....