Grand Magus are a doom metal band from Stockholm, Sweden. History Grand Magus was formed by former Cardinal Fang vocalist Janne "JB" Christoffersson and bassist Foxy. Grand Magus at Rockdetector The soon teamed up with drummer Fredrik "Trisse" Liefvendahl and recorded a three track demo. This recording led to an appearance on the Waterdragon Records compilation, Waterdragons Greatest Hits Vol 1 (2000). After this