Which deck needs to explode 'all permanents in play'? Shields are usually preferencial targets when you play a rush deck, which is the deck thype this cards seems to fit in. Of course rushes doesnt have many explosions, but shields are also not many in normal decks. Reflective shields (beyond immune to Explosion) also have the damage reduction (which is a better one than Diamond shield vs this + SoW), if the opponent can keep it normal, at least they wont be buffed by SoW, and these will be dead cards, aside to the fact you also can put your SoW on this creature. And in fact would be a little buff to these shields, that are a bit forgotten. Bone wall could work better against this with normal attack, for sure. But yeah, this is theory, I havent tested. PVP? Of course, it wont be on PVE from start.
In this case, I dont have 'delusions' about nothing. I cant figure developer intentions when he acts like this. Several cards of Fire were recently nerfed. Then he creates a bit of 'art' and some variety, possibly to not add more potential to Fire, and then chooses a shard to develop that works great with this one. Which cards benefit from SoW? Aether cards, anubis (which uses aether and costs a lot), and this one (of course, the cheapest of them, considering fire quanta production via Cremation. Isnt this strange? To me it adds more potential to fire, or SoW does, if you prefer.
Possible solutions? Dunno, maybe nerf Cremation again, lol. Lets make it produce 3
at max. Or SoW can give +4/-1.