you could get away with a pre-built pc but you might still find performance issues with a budget of $200 since lower end pre-built pcs are basically trash cans
i'll edit this later if i can come up with a decent and budget pc build for you, and building a pc isn't hard at all
https://pcpartpicker.com/list/8bBVf8 here's what I came up with, it's ~$230 but you're getting intel hd 510 graphics which should be fine for reborn and other 2d games along with 4gb of ram; this is not including a copy of windows though
what I want to know is what are your current pc's specs are, cpu, gpu, and how many gb of ram?