This is a riff on Control's Deathrattle Hunter, and I quite like it.
The only real differences are that I removed Meat Wagon, which you're going to have difficulty telling me is worth a spot in this deck, and I added consistency cards > 2nd Tracking and 2nd Argus.
Initially, I also wasn't running Spawn of N'Zoth, but that was a mistake. It is too useful for closing games.
Quick Shot could become Kill Command if you were so inclined, since the Devilsaur's are beasts. However, since this is basically a tempo deck, Quick Shot is better in that role.