Hi! I had this idea for some time now and i tought of sharing this.
I don't know if it's possible and probably it would be more fitting as a separate mod, but since there is already a system integrated in the betweenlands i wanted to suggest the addition of tool and armor limitation to other tool and armor and other dimensions.

----------------Why:
A big problem in modpack with multiple dimension is the redundancy of tools and armor.
A player will venture in a new place, only to find out that most items are usless cause it's enchanted seord and armor are just better.
This will also cause the new dimension to be extremely easy usually.

The betweenland does not have this issue since the only good tool and armor in the betweenland are betweenland one.

It would be great for a modpack to extend the same system to custom tools and armor by dimension id, so that only aether tools will work well in the aether dimension for example.

---------------additional idea
Another idea not strictly connected with the first one would be the ability to "infuse" a tool/armor with the dimension unique essence to make it also compatible with that dimension.
For example: an item that must be applied in an anvil that will add the tag: Infused to: Betweenland and can be obtained only after completing a challenging task.
This would give player a cool reward for beating the dimension.

What are your thoughts?