I think they shouldn’t nerf or change it. Its a popular tech card for the current meta, and if the ladder was not full of Demon Hunters, i wouldn’t keep them in my decklist.
You can think of it if there was a murloc expansion and everybody was running murloc shamans, you could add a pair of Hungry Crab to your decklist right?
So the ability to kill any demon, any stats for 0 mana while also healing is balanced?? HELLO!!
Warlocks in Wild play it for Voidcaller.