Merry Christless: Behemoth + Mgła + Witchmaster + others

The first confirmed artist to appear on Merry Christless is Behemoth. Four other groups will join the composition. Behind the scene, Nergal will announce the following December: "This is one of the two concerts we will perform in Poland in 2017. Mgła, Witchmaster, Mentor and Master's Hammer will join Behemoth that night performing as supports