A lot of single scenarios have a goal to find artifact.

Some objects on a map (crypt, treasure chest, wagon, warrior's tomb, utopias, ship, shipwreck, black market, sea chest, shipwreck survivor, skeleton etc.) may give you artifact with some probability, and if you are lucky enough, you can finish mission immediately.

We may call it "Artifact rolling" and I find this a very bad idea that break sense of speedrunning for some missions, and I vote for banning such technique. I encountered this during first LLtQ mission, when you need about 300-400 rolls to get Boots from Shipwreck Surviror and thus I can save about 2 days playing In-Game Days category. I consider this as a glitch (glitch is a thing that changes gameplay significantly) and didn't use it.

HOMM3 is an amazing game which may have a lot of improvements, but if the only improvement you need is to roll artifact 1000 times, it became boring.

Yes, some of you may say the same about Hero rolling (Invite Hero for HD-mod) and Spell rolling. But strong hero do not skip half of mission. And Spell rolling is officially acceptable by community (use of Guild Mage rebuild). So these both are fine for me.