No More Leaders

A lightweight vanilla datapack that disables the "Leader Zombie" health modifier on Hard difficulty.

What it does

In vanilla Minecraft, zombies spawning on Hard difficulty have a small chance to spawn as a "Leader". This gives them an invisible modifier (minecraft:leader_zombie_bonus) that heavily multiplies their health.

This datapack gets rid of this specific modifier, dropping their max health back down to the normal 20 HP.