Zenith is the most powerful weapon in the game and can only be obtained when there is nowhere else to use it.

Description of Zenith Progression

Perhaps you, like me, enjoy its mechanics and would like to play with it in a normal way. That's why I decided to create this mod, which allows you to get a weakened version of this sword on the first night by crafting it on an anvil of 10 fallen stars. Although the sword is weak, it can be improved simply by dealing damage. By right-clicking Zenith in your inventory, you can choose which stat will be improved, such as damage or attack speed. This way you can play through the entire game with it, gradually improving it, and it will eventually become much stronger than the original if you don't get bored. The configuration will help you get the right experience from this mod.

Increasing your critical strike chance above 100% makes sense since the excess chance increases the ultimate damage.

Download Zenith Progression for Terraria

* In fact, these are cards for different game modes with a chest containing a zenith. There are also options to get the zenith sword easier here.