Hearthpwn is consolidating the new cards as they appear on twitch, it seems.
Emperor Thaurassan is not a dragon, but he's so powerful it seems like he will autoinclude used in everything Control, and will seep down to a certain level of midrange. He's probably often a 0 mana 5/5, after your rebates, which would normally be just ok if you had a restriction to playing it late and getting the mana rebate slowly. But what will make him good is the ability to combo cards together, like spell damage stacking and then using spell damage AoE's or being able to scream "Closed Beta Shit" and cast Sylvanas-Brawl Turn 9.
The 6/8 for 8 "Copy your draws" dragon seems good enough in a deck that has double Loot Hoarder. Not sure about it yet. Pretty slow and all. It's not as good as Kel Thuz but it activates your "Dragons matters" cards.