Thirteen is generally considered an unlucky number, which is why we're foisting it upon you, dear reader! Giving is (occasionally) better than receiving, particularly for sadists, i.e., your holly jolly hellraising homeboys at Decibel. So, today only, sign up for a 12-month or 24-month subscription to Decibel and receive one extra issue for FREE. That's right, one extra installment of North America's premier monthly metal magazine is on us! (No code necessary.) But this one-day sale ends at midnight tonight (EST), so click here to order now!