The modding capabilities we have right now are pretty awesome, but we're missing a way to create custom enchantments. Given the new APIs to deal with enchantments in the GameTest framwork, I think it would make sense to have a way to add custom ones through a json based definition in a behavior pack.

I think that just a way to create an "empty" enchant would be, which then could be used in one of the scripting events to check for capabilities as context to handle the event.