In fact, any time that you have 0 cards after using Shard of Bravery results in decking out, pics to come soon.
(http://imageplay.net/img/tya22262257/SoDeckout1.png)
(http://imageplay.net/img/tya22262258/SoDeckout2.png)
(http://imageplay.net/img/tya22262259/SoDeckout3.png)
(http://imageplay.net/img/tya22262260/SoDeckout4.png)
Probably should be modified into having -1 cards resulting into deckout.