I started this saga from Michel Robert. It is awfully deceptive. The hero is a super hero with super power and extremely powerful in the middle of battle between the forces of Light, forces of Darkness and forces of Chaos. No main default. I hate this type of heroes. They are not interesting.
As super hero working for the chaos, I prefer Elric of Menilboe the Necromancer. Funnily, the hero has a dagger with special power that he does not control. This looks far too much to Stormbringer the evil magic sword of Elric.
My advise, don’t start this saga. Read (or re-read) rather Moorcock’s saga of Elric.
The saga is only available in French.