Walkthroughs for custom maps.

Can anyone help me? I've been playing Heroes for a long time, about 20 years... it's one of the best games out there. I love maps. I read about Paragon 2.0, downloaded it, and started playing. I spend time playing, and then suddenly, I lose because the opponent found some kind of overpowered artifact. Game over. Seriously, who needs that? I've played so much, and then it all ends like that. What's going on? Why do people like such a stupid map? I think I'll start again, find that damn artifact, and then I'll play again, spend a month, and then suddenly, the opponent finds another overpowered artifact, game over. What a piece of garbage. When you're limited in time, this isn't a game, it's a perversion. I stick to a tactic of accumulating resources, I'm not in a hurry. But the map just ends the game abruptly. It's garbage, basically. What does everyone think? Where is this artifact? Do I have to start all over again? Will there be another artifact like that?