Hearthpwn

How much do you guys rate the difficulty of each wing in Dalaran Heist? 
Up to now, Wing 4 has the easiest Heroic level as I passed it with Token Druid in only 1 run. In contrast, the hardest wing goes to wing 3 with the almighty Jepetto, who consistently puts out 1/1 Sylvanas, Sneeds and many more. Wing 3 costed me 10+ runs to beat the hell out of Jeppetto with the topdeck of the 5-Legendary ring that summoned Deathwings. 

Exactly my experience, too. I only managed to beat Jepetto on my sixth try, I think, Wings 1 and 2 took fewer attempts. Madam Goya in Wing 4 was a walk in the park with the "leftmost card costs -2 goggles"  + "all minions are +1/+1" passives and drafting cheap minons, token creators and the odd buff card. I had a lot more trouble with the "overload cards cast three times" guy, he simply annihilated my entire board every other turn. I only beat him with Golden Candle (which is generally a solid backup plan for most bosses).

The first three wing was not that hard, the first one required some restarts, the 2-3 went second try.

The fourth one not that hard either, but I just can't finish off the Rat king. The 1/10 rats just never disappear. I've only tried Bomb Warrior and some Priest so far, but I was unable to beat that bad boy. How do you deal with that?

I barely defeated Mr. 3 times overload with the topdeck of Primordial Drake after he used Rain of Toads. That luck was insane then, XD. 

To beat that boss, I chose the Ring Passive that summons 5 legendaries, which gave me 5 Onyxia and I snowballed those rats.

To beat that boss, I chose the Ring Passive that summons 5 legendaries, which gave me 5 Onyxia and I snowballed those rats.