Reign in Blood is the third album and major label debut by the American thrash metal band Slayer. Released on October 7, 1986, Reign in Blood was very well received by both critics and fans, and was responsible for bringing Slayer to the attention of a mainstream metal audience. Kerrang! magazine said the record was "the heaviest album of all time," and a breakthrough in thrash metal and speed metal. Alongside Metallica'sMaster of Puppets, Reign in Blood is considered one of the most influential thrash metal albums of all time.
^ "Aggressive Perfector" was shorter and had clearer production than the previous version featured on the reissue of the EPHaunting the Chapel. The reissue also fixed a problem with some CD pressings which incorrectly set the beginning of "Raining Blood" into the blank pause in "Postmortem".