Jumping right into it, two new sentient races:
Create illusions of magic. They can create other illusions, but only by creating things that shouldn’t be able to exist are the illusions not seen through almost immediately. For a while it seemed like they got the short end of the stick as far as race specific abilities, but when magic was introduced to the world during the 3rd age their power escalated. Unfortunately the barbaric nature of the west and limited numbers forced them to go into hiding, and in large groups they were able to create sufficiently deceptive illusions to hide their location through the ages.
Horrific little creatures that collect random parts of of fresh corpses, reanimate them using electrical pulses their threadlike limbs can generate, and voila, random corpse piece creature. They take the nerve tissue within discarded body parts to use in forming their own bodies, brain matter can be used to create offspring. They do in fact eat brains. It wa