Polymerist by Rick Ingram. Updates Thursday and Saturday, with bonus updates on Tuesdays.
Polymerists are a race of humanoids who can take the shape of animals or hybrids of them based on pacts that they have made. After spending almost a millennium, helping humanity to rebuild from the end of the world, a group with unusual abilities appears, seizing control and calling for the extinction of the Polymerists. The few survivors of these persecutions band together with some human rebels to take back their world.
Polymerist a free serial novel hosted on Dream Fantastic.
First chapter after the Jump