Eventually, Entity starts to abuse their powers; causing chaos and using their new body to pin it on their host. One of their victims is a young Jackal, and another, a certain Hawk, whose father falls to the Entity's powers, placing him in charge of his kind at a young age.
Shadow is revived by a mysterious, hooded figure, through unconventional means.
This hooded figure uses the power of one of the Chaos Emeralds to "merge" their powers with Shadow's, strengthening them. This also causes the two to become one being, in a way.