We already tested the uniques, studied the issue on the Dungeon faction – 20% resistance. We also tested probabilities with artifacts, and even tried with a top-tier Torgrim, attempting to achieve 100% resistance. It doesn't stack; instead, it works, if my memory serves me correctly, according to the following principle: first, 20% is calculated from the Horses – it doesn't work, then from the Hero – still no, then from the artifacts... or in some similar sequence, I don't remember from whom first, but it seems the principle is like that...