Excerpt from Minotaurian History of the World Vol. 2 Equestria: Chapter 1, pg 343
...Long ago, in a time undocumented by ponykind, there was an empire. The empire was ruled by a changeling tyrant named Strychnine, though he was not quite like the rest of his kin. Strychnine himself was immune to almost every toxin known to Ponykind, and his tail resembled that of a scorpion. His tail was not just for show, and was reportedly able to kill a Hydra. Its venom would cause whatever was stung to convulse and scream in agony for 2 to 6 hours before death, however there are reports of Strychnine purposefully injecting low amounts of it to torture rebels for information, however the information he recovered went missing shortly after his defeat. Reports are mixed on what Strychnine was looking for. Some say he wanted to harness the power of the Everfree Forest, others say he was trying to find the princesses before they found the elements. But only one thing is certain, if he were to escape Celestia and Luna would be his first targets.

However one thing is odd about him, and it regards his defeat. When the two sisters entered his throne room to trap him with the elements, he did nothing...absolutely nothing to stop them. There are many sources that say that he had lost somebody close to him, however it is rumored that one of the two sisters used dark magic to keep him from fighting. There are still many things we do not know about Strychnine, such as how he came to power, and what species of changeling he really is. There are still many mysteries that surround him, one day we hope to uncover the history of this tyrant...
This page goes on to describe the similarities of Strychnine and Sombra, and the possibility of those two being allies. But that is a story for another day.

Author's Note

Hopefully one of you catches the reference I placed in this chapter. Now on to the next one!