Overworld Piglins - Piglins in the Overworld
This mod allows piglins and hoglins to survive in the Minecraft overworld, but with an interesting condition - they must remain strong and healthy.
Show animation

When these mobs are affected by the weakness effect, they start behaving strangely:
Show animation

Some time after receiving the weakness effect, piglins and hoglins transform into their zombie versions:
Show animation

The mod adds an interesting interaction mechanic with these Nether mobs, allowing them to exist in the overworld but making them vulnerable to certain effects.