The centre of this deck is the Bladewing's Thrall, which is one of the most useful creatures in the deck. It's a solid creature in its own right, especially with a dragon on the field. But quite apart from being a 3/3 flyer, the rest of the deck's top-end creatures are designed to synergise with it specifically. Dragon Egg is one of the cheapest dragons in the game, and sits as an non-threatening talisman that keeps our Thralls in the air to serve, as I'll explain in a moment, as nigh-invincible blockers.

Archwing Dragon hits the field hard and fast all by itself. Not only does it drag our Thralls to the field from the graveyard, it then returns to your hand and becomes a reliable, repeatable avenue of return for your Thralls. Nigh-invincible flying blockers.

The deck's beefiest creature is undoubtedly the Predator Dragon, which synergises perfectly with Bladewing's Thrall. The Devour mechanic lets you feed Thralls, Skeletons, and Eggs to the Predator to make it a massive flying creature that can assault the enemy the turn it comes into play. But what's more, is that any Thralls you feed to it are already in the graveyard by the time it enters the battlefield -- so they return to the battlefield as flyers almost immediately after leaving.

Similar to Devour is the resurrection ability of the Scourge of Nel Toth. After it's sent to the graveyard, it can be cast from there for only two black mana -- so long as you're willing to sacrifice two other creatures as well. This deck is full of creatures that make perfect sacrifices, but again the Thrall is the ideal choice. They hit the graveyard as part of the Scourge's casting cost, so they're there to be resurrected when the Scourge finally hits the field. Congratulations, you've just cast yourself a 6/6 flyer for BB.