In Duels the Shaman Questline with Fireheart is currently a very frustrating power outlier. With the Stormcatcher ability preventing Overloading the Quest becomes “On turn 4 or 5 double all your spells with no downside”; which would be irritating but not a huge outlier. However Nature spells also have some of the best Passive Treasure support and make up a very large amount of Overload cards. This effectively renders the match Solitaire, especially as Aggro stops working as a strategy in Duels very quickly.
Using Hearthstone-Decks(dot)net it becomes very clear that this is currently the strategy for all Shamans but especially Fireheart and has been for some time. Normally I am against banning cards in Duels, but as stands it’s uninteractive, unfun, and no other solutions seem possible at this time.