Interchangeable armor is a mod that adds a new crafting table to the game, from which we can evolve any base armor in the game, to add all kinds of improvements, both in defense and in durability of each pieces of armor. We can also add some cool new skills, like flying in survival mode.
The abilities that we will be able to imbue in the pieces of the armor come from the mobs of the game. So, to acquire skills like flying or climbing walls, we must kill the Ender Dragon or the spiders respectively.