Hey,
I just made 5000 Dust by disenchanting all nerfed cards.
Don't forget to do so as well! Even if you decide to use them again, you can craft them, since you get the full dust value this week!
These cards have been nerfed:
1.) Bonemare now costs 8 Mana.
2.) Corridor Creeper now has 2 Attack.
3.) Patches has no longer Charge.
4.) Raza makes your Hero Power cost 1 Mana.