I'm currently playing the following deck, a Shaman variant with two Doomhammer and two Lavabursts that can deal very high amounts of burst damage:
click on the image to see the full size version
While it worked pretty nicely so far, I still have trouble deciding which cards to mulligan. The deck has almost no early-game minions, the usual rules for minion-focused decks don't really apply here.
What are the general strategies I should follow for the mulligan phase with this deck? The big general question is whether I should keep a Doomhammer if I have it in my starting hand or not.
How should I adapt my mulligan strategy against different classes?