Set in an alternate universe I call thebossverse (real creative, I know)

Rainbow Dash has been in the hero business for a year now, and has seen little action in Ponyville since putting on the mask. That's all changed after a beloved member of family died and left a fortune to the Rainbow Family. Using her share, Dash decides to expand her secret operations as the mask pony "Mare Do Well" ,but the loss takes it toll on the Rainbow and her family. However, things start to get better for Dash when her parents adopt a filly to help with the healing process from grief, and who that filly is couldn't of made Rainbow Dash more happy. But a pony who wants vengeance returns to Ponyville, and the visit creates more than intended for both her and Dash.