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The 2013 NBA playoffs feature several formidable venues that crank up the intensity once the postseason arrives.

How do the most intimidating arenas create such a daunting atmosphere?

It all starts with the fans. Their level of passion and thirst for success determines the overall energy of the game. Everything else is just supplementary peripherals that help to enhance the atmosphere.

Of course, it doesn't hurt to have some good traditions and annoying ploys— and a fearsome team on the court.

Which clubs cracked our top 10 most intimidating atmospheres?

*Teams/Arenas chosen from 2013 NBA playoff participants