Would it be possible to either have GameStages integration or possibly a per dimension whitelist/blacklist that applies for the changes you made to undead mobs? I'm developing a large pack for 1.12.2 and I thought your mod was a terrific way to add progressive difficulty, especially in later tiers (which are separated by dimension.

An interesting suggestion! I've never worked with GameStages before, so I can't promise anything on that front. But I'll definitely try and add something like this. At the very least, a dimension blacklist/whitelist config for the undead changes should be doable.