A simple mod that adds a late game weapon which isn't too op.
This mod is a remake of a mod I made around a year ago, I will expand it
First you need to craft the Oracle Gem :

Next you use it to build the sword :

It does 18 attack damage, making it the strongest weapon in the game. adds more incentive to fight the wither.
Wisper Forest Biome:
Day: 
Night: