Gladiator B

B was discovered, but instead of being killed, he was put into a gladiator pit and made to kill others to survive, and eat the next day.

B is still an assassin class in this AU, so all odds are stacked against him. He would die pretty early on, either from the fights or from the containment cell/box he’s put into. 

A holding place with bright LED lights pointed and positioned all around the container, that never turn off. The relief he gets when he’s out of that cage is a few seconds of normal lighting, before being put in the ring.

So, if he doesnt die from the fights or the container, he would survive to be champion