Please offer some advice. Auto-translated

If a Barbarian is left with only one magic slot, what kind of life is that? Haven and that's it. Just like in the campaign for Fortress. What's with this nonsense of having to specifically level up nobility for the main hero if it wasn't there initially and it's not a death sentence?

Hello! Please help! I'm playing Heroes 4, Alexander campaign, Excalibur section, mission for Vegg. In the last mission, the gray gate won't let the main hero into the tunnel. It says that only the main hero can pass without an army. I leave the army, but there's still no way through. Please help. I don't understand what to do.