Now, I can't vouch for how this deck does in joust. But if given just a bit of breathing space in melee, this has some crazy rush potential. Particularly with the Heir to the Iron Throne agenda.
Having Dany, Rhaegal and Yunkai is huge... I'd even dare to say faster or at the least comparable to Bara Rush. That said, they share very similar weaknesses.
Anyone else see/try this deck in their meta?