Mateusz is a death/ black metal vocalist and a vocal coach able to use 12 totally different styles of extreme vocal techniques. He has experience with a dubbing (voices of orcs and demons for mods for the Gothic game series like Returning PL and Dirty Swamp PL). Beside being active in his band Vishurddha (up to 2022) and Imperial Sin (since 2022), he is also a session vocalist (over 100 songs recorded between 2020 and 2022).