Hearthpwn

On one account I beat all the bosses and the final witch battle on my first try, but on my second account Shaw vs. Crowskin was an absolute struggle to say the least:

The draft above that finally won was Lunar signet/Entrenchment with Hadronox. Lunar signet because Hadro becomes a tempo play from hand as well as insurance against AoE, and entrenchment because it lets you take value trades into tokens early game letting you get to your taunts/also buffing the taunt wall res; ended up out valuing her into fatigue. The first time I beat her I just drafted every houndmaster/animal companion/beast buff I saw and it ended up winning. Both methods probably work fine.

Coming from a legend player/having completed all adventures including Witchwood and Kobold's, I also agree that Crowskin is OP. But does she need nerfing? No! Nerfing PvE hearth is stupid, and it wouldn't be fun if it wasn't challenging. Something I would also like to mention is other heroes have ways of beating Gnomenapper, but if you run into him as Shaw, just concede and go next.