I used this deck to climb Legend (proof) this season.
I added some good tech cards vs the current meta:
Boompistol Bully is great vs. Raza Priest which is a very common deck now.
Vulpera Scoundrel is very good overall, allows to adapt the situation, to find burst damage, card draw, healing, board clear or silence effect.
Glacial Shard is great vs Pirate Warrior.
Blowtorch Saboteur is good in mirror and vs Raza priest.
Loatheb is great vs most decks (Quest mage..)
Blazing Battlemage is important as an extra early game damage generator vs. mage and Priest. also good vs Pirate Warrior.
Try to use your hero power every turn - it's the main strength of the deck.