Ever the couple, Julianne simply can not live without and therefore can summon him for four mana through her hero power. In the Heroic version of the encounter, Julianne can summon for free each turn who now also finds himself costing one less mana, just in case you were planning on bouncing him back to her hand.
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You'll need to use powerful effects to win this battle as all your minions are 1/1s, but have their cost reducted to one mana. Heroic Big Bad Wolf however, makes it so that his minions only cost one mana, but yours are still only 1/1s. Good luck!
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Dorothee, a 0/10 minion, gives Charge to minions on her left and Taunt to those on her right. The Heroic version of the encounter looks like it will simply upgrade the boss' hero power, making your survival more difficult.
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