Simplify fireplace.cards.merge() so it can be used recursively
Simplify fireplace.cards.merge() so it can be used recursively

butozerca/fireplace,Meerkov/fireplace,oftc-ftw/fireplace,smallnamespace/fireplace,beheh/fireplace,amw2104/fireplace,Meerkov/fireplace,Ragowit/fireplace,jleclanche/fireplace,amw2104/fireplace,butozerca/fireplace,NightKev/fireplace,Ragowit/fireplace,liujimj/fireplace,smallnamespace/fireplace,oftc-ftw/fireplace,liujimj/fireplace