By being imbued with the Element of the Dragon, the blood and magical energy of a Dragon now run through your veins, coalescing your Magic Circuits into your heart and creating a unique type of Magic Circuits that transcend what can be achieved by normal humans and magi called a Magic Core. Your new core functions as an enormous Magical Energy core with tremendous capacity that generates energy independent from your body simply through breathing like dragons. The amount of Magical Energy it generates rivals the heat of the Earth's core, allowing one to potentially fuel weapons on the level of the strongest of Noble Phantasms multiple times in a row.
Your Magic Core also grants you the natural ability to increase your performance by infusing your armaments and body with Magical Energy and instantly expelling it. Simply put, recreating the effect of a jet burst by expending large amounts of Magical Energy. With your immense magical power, it's possible to maintain a full body reinforcement with ease, allowing someone with the strength of an ordinary human to amplify their physicality to go toe-to-toe with even A-ranked Servants.
Your Dragon Factor - as well as enhancing your endurance and stamina - grants a great resistance to magical phenomena, though not necessarily on the level of a Saber-class Servant. As a side effect, you may find yourself with a much greater appetite, and an increased capability to quickly digest food and have room for more. Any excess calories/nutrients are burned off by your Magic Core and turned into Magical Energy, should you for some reason need it.