Aggro Dh [FITB]

First of all let me remind you that Voracious Reader is not in core set 2021.

1. Razorfen Beastmaster can summon Razorboar or Sneaky Delinquent or Razorfen Beastmaster or Darkspear Berserker  from your hand when it dies. It saves mana for tempo and play outcast cards easier.
2. Darkspear Berserker is better than Felsaber.
3. You have 8 deathrattle cards in your deck. So Vengeful Spirit is fine.
4. Stiltstepper is good for playing in turn5 because you have 14 cards whose cost less than 3 (approximate 50% for extra damage).
5. Illidari Studies can help you playing cards like Gan'arg Glaivesmith or Dreadlord's Bite in turn2.