It needs life orb badly. Cant even ko lucario with aura sphere without it. Also the Rash nature which makes it slower and reduces its sp def doesnt help it either. All these calcs are either showing how much it needs life orb or are just pointless. Also how are you going to hit ninetales and hippowdon under rain? If theyre switching in they will change the weather. Sorry but raikou needs to sacrifice itself too much to have a niche in OU, to the point where its not worth it.