This is a rewrite of my failed story "one of a kind" which was about the last living human. This will also be about the last living human but it will be better.
You know, he acted here just as fucked up as Celly. Experiments on prisoners, seriously? And everyone ok with that? I'm not even sure most of the guard knew what's wrong out would keep actively supporting Celly after they find out. Also, what is the point of that drug if it wears off immediately? Also, when exactly Spike learned to kill ponies? He may hate what Celly did to him, but that far from enough to do what he did here.
At least Celestia learns that you reap what you sow
You know, he acted here just as fucked up as Celly. Experiments on prisoners, seriously? And everyone ok with that? I'm not even sure most of the guard knew what's wrong out would keep actively supporting Celly after they find out. Also, what is the point of that drug if it wears off immediately? Also, when exactly Spike learned to kill ponies? He may hate what Celly did to him, but that far from enough to do what he did here.