Opeth

They fell into decline slowly and inexorably. From 1995 (Orchid) to 1999 (Still Life), works of exceptional quality. From 2001 (Blackwater Park) to 2003 (Damnation), works worthy of some attention, but nothing transcendental. From 2005 to 2011, a complete collapse, each album worse than the last. They have become a mockery of any Swedish prog rock band. Heritage is even pitiable in its mediocrity. 2 for the countless steps back taken.