Here is a bunch of tips on how to craft most effiecently:. 1) Know what cards you want to craft really badly. Sometimes it is best to wait to craft anything until you are confident that it is the one you want. 2) Disenchant your duplicate gold cards and your unwanted epics for the most gold return. 3) Be sure to disenchant your duplicates before you disenchant any of your regular cards. You might already have enough dust. Cheers. Quadron.