Characters in a universe where most of them will be killed. Sorry.

20 strangers are taken and forced to survive in the wilds of this magical world for the entertainment of the masses watching. The twist is that each of them are magically bound to another, if one of the duo gets hurt, the other will get hurt in the same way, and if one of them dies, the other will die too. And unfortunately, the last pair to survive will be the only ones granted freedom.