This is definetly the album that put Slayer on the map and even though Slayer's musicianship/songwriting was better on South of Heaven and Seasons in the Abyss... Reigning Blood started the whole ball.. back then (not by today's standards) Slayer was considered Black Metal and to me they still are.. they were one of the originators along with Venom and others.. if these bands never existed countless of BM Bands today might not be in existence as well... as for Lombardo being overrated.. again what he did back then directly or indirectly influenced drummers/bands today whether they like to admit it or not.. you only need to go to a Slayer concert and see people's reactions to songs from that album especially Angel of Death... that album blew my mind away back in 1986 when i read a review of it in Kerrang or Aardshock magazine cant remember which... i used to listen to that album over and over when i first got it back in 86... metal fans not from that era because they were a sperm cell, Egg or Embryo will not understand what it was like to first hear that album back then.. now it may not make a impact because of the prolific and overwhelming amount of BM, Thrash etc.. bands nowadays .. but think about where it all originated from and how few bands that played that kind of music existed back then and why that album was and still is important and awesome ... 
