The Soul Snatcher

The soul snatcher is a soul that was on earth too long after death causing it to transform into a monster that eats souls, but when its not eating souls its taking and locking them up, so the souls turn into soul snatchers as well, because that's the only for them to make more soul snatchers since they cannot reproduce like the protectors, so they take the souls and force them to stay in earth long enough to transform but when they do transform they are in an egg for 4 years before hatching into infant soul Snatchers, all soul snatchers have to eat souls to survive and they can only go out at night otherwise they burn and turn into ash and dust within 3 seconds of coming into contact with the sun, and no they cant just go out of the sun during the day because the daytime kills them no matter what unless they are in complete darkness but the dark doesn't bother them because they have night vision.