Death metal band from Uppsala, Sweden. Now known as invidious. The idea of starting a death metal band came up in winter of 2004/2005. P. Pestilence and G. Grotesque had a project called Vomit. They wanted it to sound like Entombed, Nihilist, Grave and Dismember. At the same time Adde B Obscene and A. Asphyx had the idea of a death metal band (Katalysator) and they wanted it to sound like Entombed and Sepultura etc. P. Pestilence, Adde B Obscene and A.