It doesn't need to be nerfed it's really not that strong. We don't even have blizzard's data publicly so there's no way to know the win rates currently, face hunter could be the top deck now or a priest deck we aren't aware of.
As far as nerfs go we just had a round of them I don't understand the rush for even MORE changes.
Blizz probably wants to keep the new cards competitive for the expansion anyways so there's no way to nerf the warlock quest, stealer of souls or zoo in general.
Buffing other classes and cards doesn't solve the problem, these are indirect nerfs which reduce the viability of warlock too, if every other class gets buffed that is a nerf to warlock.
Problem I would say with this line of thought is that, even after the nerfs, Warlock is still the only class with a banned Wild Card: Stealer of Souls
So something still needs to be done, eventually, in order to allow said card to be played once it rotates, and it just so happens to be used in a prominent "feels bad" archetype with a positive winrate (whether it's out of scope power wise or not).
Only question would, therefore, be whether the card/mechanic gets changed sooner or later, and I'd argue sooner is better for Hearthstone, since it is such a feels bad archetype right now.
Simple: change it so cards/effects that cost life instead of mana don't count as damage.
Stealer of Souls stops counting towards progression and doesn't outright murder the opponent post completion, and simultaneously fixes the issue where it had to be banned out of wild for it's interaction with immune cards.
Win win win.
While i think this is by far the best way to change things, i dont know if that would happen ever since it may require a change in the hearthstone game code itself and we dont know how much work that might be. It could be potentially very easy, it also could be a nightmare depending on how it is programmed.
They already have 'non damage' and 'non-healing' health manipulation effects in the code (Alexstrasza) that still preserves maximum health.
Simple: change it so cards/effects that cost life instead of mana don't count as damage.
Stealer of Souls stops counting towards progression and doesn't outright murder the opponent post completion, and simultaneously fixes the issue where it had to be banned out of wild for it's interaction with immune cards.
Problem I would say with this line of thought is that, even after the nerfs, Warlock is still the only class with a banned Wild Card: Stealer of Souls
So something still needs to be done, eventually, in order to allow said card to be played once it rotates, and it just so happens to be used in a prominent "feels bad" archetype with a positive winrate (whether it's out of scope power wise or not).
Only question would, therefore, be whether the card/mechanic gets changed sooner or later, and I'd argue sooner is better for Hearthstone, since it is such a feels bad archetype right now.
They already have 'non damage' and 'non-healing' health manipulation effects in the code (Alexstrasza) that still preserves maximum health.
I imagine it's not that hard.
Simple: change it so cards/effects that cost life instead of mana don't count as damage.
Stealer of Souls stops counting towards progression and doesn't outright murder the opponent post completion, and simultaneously fixes the issue where it had to be banned out of wild for it's interaction with immune cards.
Win win win.