Artifacts in Heroes 5

I have an even more elaborate idea that actually works... :) A cloak that reduces morale and luck by -2; then a ring of misfortune, also reducing luck by -2; and a ring that reduces morale by -2 (I don't remember the exact names of the artifacts). That's a total of -4 to luck and morale. This is in addition to Necromancers with the banshee scream ability, which would result in both effects, -5. But if you also take a Dread Knight (with the banshee scream ability)... it gives -6 to luck and -6 to morale to the enemy... You'll definitely remember this battle... However, you still need to find those artifacts... That's why I was just lucky to collect such a "wicked" collection... ;)