y/n x avengers 540

You are a horse named Eclipse, a subject in a HYDRA project to modify horse DNA to produce either good rides for patrols or to participate in horse racing to provide hefty sums of money. You were one of few chosen to be modified for racing, your DNA modified and body changed to make you sleeker and faster, as well as more intelligent to be able to understand riders better. However, before you even got to start racing, the base which was being used for horse experimentation was raided, and surviving horses, of which you one of few of, were taken to SHIELD to recieve veterinary care and find a new home. You were exceptionally lucky, catching the eye of SHIELD agent and Avenger Clint Barton, who chose to care for you in hopes of gaining a riding horse for his friend and fellow Avenger Natasha Romanoff, who often came to stay at the family house and land he owned, frequently borrowing his horse for rides to destress, until he found the opportunity to get her a horse of her own... (Very different to my usual, ik, with the oc being an animal, just wanted to get the idea out of my head and see if people liked it enough for me to do more!)