First of all, an explanation: Imagine you find a new armour with an awesome stat, but the one you are wearing looks much better. Would you prefer a better look instead of a better stat ?
Not anymore! Here come the new polymorphic items!
You can transfer stats or even the way an item looks to the new polymorphic items. For example, you can apply fire resistance from a magic pants to the Polymorphic pants. Or maybe you could transfer the look of a pretty sandals to the Polymorphic boots !!!
You can transfer any stat you want to those new items, but once you transfer it, the original item is destroyed.
So, more customization choices for the game.
Only Magic Crafters NPCs can transfer stats, as you can see in the video.