Reider

Mod Features:

New Hostile Mob: The Reider is a creature that lurks in the dark, whether in the depths of the Overworld or the shadowy landscapes of the Nether. With a simple but effective design, this mob offers a challenge without overloading your game.

Simple Behavior: The Reider has a basic AI, chases players and passive creatures, and attacks in melee with moderate speed. Despite its simplicity, it can be a formidable opponent for unsuspecting players.

Unique Drop: By defeating a Reider, the player can obtain a unique item: the Reider's Core. This item has a high probability of dropping upon the mob's death and can have several uses within the game

add armor and tools with the item 

Requirements and Compatibility:

Minecraft version 1.20.1 (Forge).
Compatible with other modifications that do not modify the basic behavior of hostile mobs