EliteMobs is a NeoForge mod for Minecraft 1.21.1 that adds dangerous, scaled-up versions of vanilla hostile mobs to your world. Instead of facing the same predictable Zombies and Skeletons all game, players will occasionally run into named elite variants that hit harder, survive longer, and at the higher tiers show up fully armored and enchanted, with their own boss health bar.
Elites spawn automatically only at night, in the Overworld. The mod checks every 5 seconds while it's nighttime and rolls a small chance to spawn one near a random online player. The odds are tuned so that, on average, about 4 elites appear per in-game night.
When an elite spawns:
You can also force-spawn one yourself anytime with the /elite command (requires permission level 2 — operator/admin).
The base mob is randomly chosen from: Zombie, Skeleton, Spider, Creeper, Husk, Drowned, and Stray.
Every elite belongs to one of four tiers, each rarer and stronger than the last:

Every elite gets a unique procedurally generated name in the format "[Adjective] [Mob Type] of the [Place]" — for example "Heavy Zombie of the Cave", "Withered Skeleton of the Nightmares", or "Bloodthirsty Witch of the Swamp". With 30 adjectives and 24 locations, there are over 700 possible name combinations per mob type, so no two elites feel quite the same.
Champion and Berserker tier elites display a Wither/Ender Dragon–style boss bar at the top of the screen for any player within 48 blocks. The bar shows the elite's name in its tier color and updates live as you damage it, disappearing automatically once the mob dies.
Every elite — regardless of tier — has a permanent Glowing effect, so you can spot them through walls and terrain before getting close, plus a bold, color-coded name tag always visible above their head.
Elite mobs never naturally despawn once spawned, so a fight you walked away from will still be waiting for you later.
Github repository: https://github.com/HERTRUCKKSKSKSK/EliteMobs.git