I looked into a few cards that got mentioned, Sacullas being one of them, and I've previously noted why resolving during the effect phase can be a horrible, horrible idea in this thread http://forum.lightmare.com.au/index.php?topic=61977.0
The thing is, he's already horrible to people. FD has a lot of +2 per character options. Bromich/Banner give +2 to your guy directly, Sacullas does +2 per character, and Centurion gets +2 per character. Bromich is, stat-wise, a +2/+2 to Sacullas, so Sacullas getting a cool effect upon hitting the fortress would make sense, actually, as all these OTHER methods require hitting the fortress directly. Centurion isn't unique, is 3 cost, but has understandably smaller stats for it. I'm not saying he has to change, but I'm starting to see why they would want him changed.
Something about Dark Wish is that, yes, it does everything, but it's only stronger than a few certain cards that I can think of. Does it ahve Varyus's ability? Yes. Does it cost a resource more despite this? Yes. Does it deal as much damage as Blood Arrow? Yes. Is it more expensive? Yes. Is there no sacrifice? Yes. Would 3 lightning bolts deal more damage? Yes. Would it be cheaper? Yes. Is it like how Exhaust is 1 extra resource for a second Stumble? Yes. Does it draw 3 cards? Yes. It is actually better than Devil's Bargin? Yes. Is it a higher purity? Yes. Is it a higher rarity? Yes. Does it do the same thing as Awaken? Yes. Does it cost exactly as much? Yes. Does it, for some reason, not have the ability to target the field (and maybe hand) like Awaken can? Yes. Does it create a demon that is much stronger than most other fliers? Yes. Is it far cheaper? Yes. Does it stop you from using other effects? Yes.
Is anybody complaining about Vasir though? Alright, he's a 7-cost, but he has +2/+2 and Unstoppable. Is he really THAT MUCH more balanced than Dark Wish? The demon aside, Devil's Bargin is the only card with a similar effect where this outright bests it. While Blood Arrow does require sacrifice, that's been a running theme throughout Verore as of late. Plus, Blood Arrow and accept Rita's Thrall, allowing for a fodder thaat comes back anyways, mitigating the cost some. However, both Devil's Bargin and Blood Arrow are of a much lower purity and rarity, which means you're likely to have 3 of them long before 3 Dark Wish copies. In theory, Devil's Bargin could be a great Exiles splash if it wasn't a 2 purity.
The problem with giving every faction a Mass-Death card is that it devalues Mass-Death being a 2 purity Verore card in the place. If every faction was going to use it, then it might as well be Factionless. I have run into Dark Wish decks that use it for anything but the 16/16 Demon. Granted, I'm pretty sure a Warped Swarmer deck isn't too frequent, but that's a thing. The thing with all-in-one cards like Dark Wish is that I often have to consider which option I pick. Oddly enough, I've have many isntances where I had to consider what I wanted out of it, or outright didn't use it because I didn't need anything at the time. Maybe it's just me, I dunno. I do think some work is needed overall, though I'm not entirely sure how much. Making Dark Wish 6 cost would, as far as I know, balance it out almost immediately.