Entity: Bright Fetchling

Source Ancestry Guide pg. 85 ^3.0

Your body proves that shadow can't exist without light. Perhaps your eyes glow brighter or your veins occasionally pulse with light. You emit dim light within 5 feet of you. You can activate or suppress this ability as an action, which has the concentrate trait. Additionally, you can force fragments of your shadow to glow and cast dancing lights and light as occult innate cantrips. Cantrips are heightened to a spell level equal to half your level rounded up.