Infernal Bloodline - A Sorcerer Subclass

Your innate magic comes from the fiends of the lower planes. You may have a cambion, a succubus, or other fiend somewhere in your heritage, or perhaps one of your ancestors was cursed by or made a pact with a fiend. For whatever reason, you share blood with a fiend of the underworlds. Many Fiendish sorcerers are tieflings with a particular affinity for their heritage. Non-tieflings often grow small horns, or patches of thick, red, leathery skin. Other fiendish features could include strangely colored eyes, spinelike hairs, or pointed teeth.

- from the publisher's blurb