Bugfix for Backstab
Bugfix for Backstab

pieiscool/edited-hearthbreaker,danielyule/hearthbreaker,slaymaker1907/hearthbreaker,jirenz/CS229_Project,kingoflolz/hearthbreaker,Ragowit/hearthbreaker,noa/hearthbreaker,slaymaker1907/hearthbreaker,pieiscool/edited-hearthbreaker,anuragpapineni/Hearthbreaker-evolved-agent,anuragpapineni/Hearthbreaker-evolved-agent,anuragpapineni/Hearthbreaker-evolved-agent