Basically the concept is giving credit to characters who have had almost unreasonably hard lives, or have experienced some great ordeal prior or during their story, and have become badasses as a sort of karmic response to their dispotition. These characters can be good guys, bad guys, animals that lost their whole families but became rescue animals later, anything.
Perfect examples of characters that fit this trope are Kenshiro(naturally) Batman,Kratos, Edward & Alphonse Elric, Odysseus, Cu Chulainn, etc. The description needs a lot of work, I know, but I just wanted to get the idea out there. Thanks guys
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.