The problem is that Hullbreacher is a bad card. It can at least attack, which is an okayish backup plan without Bolt...but it doesn't really get you...
Bauble is a bad card, it is either all-in (Ancient Tomb) or the worst card in the deck (Delver, Shadow). If you are adding Saga, the card you are not...
It is easier to do postboard with a 2nd Furnace-type and Ashioks. The main thing is turning Saga into a card they can't tolerate, and must bleed hand...