Forbidden Materia

[Tempestmoon]

If the dark materia is going to be as good as they say, I think they will have a penalty to meld it to armor such as an extended weakness, negative affects of control and output. Or even experience or level loss. to be a dark materia crafter you would have to maintain your levels to keep crafting it.

[Forerunner]

So not only can you not change your gear, but you will also not be able to change your class.

That is, until you pay for the "evil" materia to be "purged" from you.

XI Nostalgia ftw. Mog House = NPC to purge evil materia.

+1 for you, sir.