Hearthpwn

Only 1 Execute!?! - really hard to enable it - no slam, cruel task nor whirlwind

Chillmaw - fantastic card, Baron Geddon replacement and counter to aggro and patron decks

Varian Wrynn - Bad if you put your battlecry minions on the board, I may consider replacceing BGH for another Brawl.

Twilight Drake? - Great synergy with sparring partner

The Black Knight - combined with Sparring partner = 8 mana 7/7 and RIP Ysera

Bolster - IMBA savage roar, may be a win condition

 

 

 If the meta will be still aggressive:

BGH and 1x Twilight Drake --------> 2x Cruel task/ Slam/Armorsmith

Ysera -----> Revenge

 

 

More viable cards that may fit in the deck:

Deathlord

Armorsmith - If the meta slows down, not that great, but a must-have against aggro decks

Bolf Ramshield

King's Defender

Icehowl

Nefarian

Alexstrasza's Champion

Blackwing Corruptor

Sen'jin Shieldmasta

and a high spot for Justicar Trueheart +  Garrison Commander