I've made the Core Chimail Drago and haven't unlocked Blackwing Zephyros but the deck still works. There are comments about Six Samurai being auto pilot and I think Dragunity isn't much different. There are only a couple of standard plays you can make with their monsters. I did make Trident Dragon a few times, once using Leyvaten but I eventually removed that card as it was not useful enough. It has to be one of the weaker boss monster of the recent structure decks.
As I mention in the six samurai post, first turn or one turn Stardust dragon doesn't happen often, as it takes around a combi of 3 cards.
