by peterk1
Check some the videos by Cardboard Of The Rings that are up.Keep practicing, you'll get to the point where you can start winning this one consistently even with heroes chosen at random.
For the 1st scenario :
Try doing it with Lore to boost your morale a bit. Keep 3 Gandalfs in your deck. Take a mulligan and redraw if your initial hand doesn't contain at least one. Use Forest Snare for the Spawn. Try to get one of those in your starting hand too, as well as a Gandalf.