19 Voracious Vermin Voracious Vermin is a bit expensive at three mana for just a 2/1, but it also creates an additional 1/1 black rat creature token
As a side-note, I looked up who Gwendlyn Di Corci is and, well, suffice to say that she's the sort of person who would really appreciate handcuffs
You dont have to, but its an option
Legendary Creature - Human Assassin Mari, the Killing Quill Whenever a creature an opponent controls dies, exile it with a hit counter on it
While 20% might sound like a lot, it is actually a fairly good failure rate for low-end (price-wise) sleeves
The Haunt of Hightower Into: Millmeoplasm For: Jaces Mindseeker The deck that mills is the deck that kills, and when you can also do it via combat damage, thats even better