Enchanting is the process of enabling bonus effects on your Crafted Items. After each game you are awarded, via Chests, some enchanting materials which are then used to further the enchantment level your Crafted Item of choice.
Each enchantment attempt increases the enchantment level by a random amount
Each Crafted Item has three tiers of enchantment: Common, Rare, and Legendary. The Common Tier improves on the natural effects of the item, whereas the Legendary Tier adds a new effect that usually synergizes with the item's original effect. The Rare Tier between the two is a random bonus decided after reaching the tier. All together, the tiers have 10 levels each for a total of 30 levels to enchant through for a maxed out Crafted Item.