I was thinking and thinking, could KI ever let us put cards in certain types of equipment? Well, i thought about it a little more, and I came up with enchanting!
It's very simple to do (Of course you'd have to start out at beginner, novice, etc.), you start off with the enchanting of the easiest equipment. Let me explain what enchanting equipment is to me. You are able to add a card to an original piece of equipment. The Novice wizards would be able to imbue Rank 1 Spells, and as they go higher in the levels, they'll be able to go all they way to Rank 8 Spells.
You cannot make armor that is enchanted, you would have to enchant things that have already been made. The main source for Enchanting is treasure cards. If you collect a certain amount of treasure cards, you will be able to enchant the specific item. The Lower the Rank of Treasure Card, the lower Treasures you have to gain.
Here is another chart stating the minimal requirements of Treasure Cards for Each Rank Spell. (The Treasures have to be exactly the same!!!)