Seems pretty solid. Looks like a more mid-rangey take on the new spell damage burn mage.
Casinos are fun, but wondering if two puzzle boxes is too many. I might swap one for a Pyroblast. Keeping some more burn spells in your deck would be a good idea when stacking spell damage. And you can still whip it out on turn 6-7 with the Dragoncaster to possibly steal a win from an aggro deck.