Draconic Graveburst

Due to my unhealthy affection for dragons (no, not like... I just think dragons are cool...), I have revised, updated, and generally remade my old "Dragon Dredger" deck that employed Memory Dredger to return my early game units, especially Oni Dragonsmith, until able to cast the larger dragons; however, I believe that there are several advantages to this current iteration:
A). It has an even greater capacity to return ANY units from the void, rather than merely the 1- and 2-cost minions within the deck;

B). The list is now able to leverage "entomb" (as with Bait and Soulfire Drake), "sacrifice" (Combust and Devour), and "cheated" power costs via Grasping at Shadows;

C). The omission of the Dredgers has made room for more desirable cards, such as additional copies of Soulfire Drake.

Or that's the theory anyway...

In truth, I've yet to get an adequate sample size from ranked testing, but modifications will be made as necessary.
If you have any advice/suggestions/general guidance, please do let me know! Thanks!