I doubt that we need the graveyard hate aspect of Emperor of Bones, but stealing a big creature and getting to hit with it for one turn is definitely appealing, and its the sort of play that can help you win a damage race
The big challenge in exploring Dark Box is not knowing if the deck is able to beat Shadow Rider Calyrex VMAX, but learning and building a list capable of winning several other matchups without spoiling the positive matchup that the deck already has against Shadow Rider Calyrex VMAX
Gideon, Ally of Zendikar spits out knight tokens regularly
The mechanic of the Lost Zone allows you to set your cards into it to empower attacks and unleash devastating effects on your opponent
Each activated ability has a cost that you must pay, and an effect that you get
Getting Hexing Squelcher onto the battlefield as early as possible is highly recommended, and you can play around with including more copies of the card if you find that chasing the single copy in this deck is too problematic