Artifacts in Heroes 5

It's important to know moderation in everything; otherwise, if you remember the third game, whoever collected the cloak (made from three Necromancer artifacts) won. And immediately, everyone starts complaining about the balance. Or the Cursed Armor (too easy to collect) but has a great effect. If you want to collect something, it should be less powerful. Otherwise, you'll have to close off access to some artifacts in the editor again.