Considering jobs will prohibit the use of skills from another class.. Materia

[Biggs]

I think this would be a very cool addition if they did it as follows: Player equips featherfoot materia to a pair of shoes. Say its a level IV materia. Said player now has a 8% chance to have featherfoot activate each time he is struck. The same mechanic could be used for protect and a lot of the other defensive abilities. Since the armory system allows you to already pick and choose, this could be a nice addition that still limits player control, helping to keep it balanced. Oh, and these shouldn't stack.

I also would like to see materia that adds mp and hp siphon to weapons, even if its just a small amount.