This is a possible concise summary:
The video is about a challenge to beat Terraria with the Zenith, a powerful sword that starts off very weak and can only be improved by swinging it repeatedly. The narrator describes his journey of leveling up the Zenith, crafting better armor and weapons, and defeating various bosses along the way. He eventually manages to beat the final boss, the Moon Lord, with ease, and then shows how overpowered the Zenith can be with maxed out settings. He ends the video by promoting his channel and other videos.
Here are some key facts extracted from the text:
1. The text is about a video game challenge where the player tries to beat Terraria with the Zenith, a powerful sword that starts off very weak and can be leveled up by swinging it.
2. The Zenith has four stats: speed, damage, critical strike chance and penetration, which affect how fast, how hard and how many enemies it can hit.
3. The player has to go through the entire game progression, from pre-hardmode to post-moonlord, using only the Zenith as their weapon.
4. The player faces many difficulties and deaths along the way, as the Zenith is initially very slow and weak, and has to be swung constantly to level up.
5. The player eventually manages to defeat all the bosses, including the final boss, the Moon Lord, with the Zenith, which becomes very fast and powerful by the end of the challenge.