The other sets are:
The similarities between the spells above and this new "cursed" spell set should be plain to see. however, ironically, the "cursed" spells dont have penalties for finding tokens, they are in fact a little bit more expensive, but in-turn they're safer and have bonuses on there!
Well. Safer is perhaps a wrong way to describe it, because playing with is plenty risky in of itself.
In order not to overcomplicate these reviews, I'm assuming you already know how good it is for characters to replace their into tests, pretty much every deck packs in several of these cards, sometimes doubling up for the sake of consistency (a clue focused taking both Rite of Seeking and Clairvoyance for example). This is the way to go for most mystics, with some rare and specific exceptions.
So why would you go for the cursed set?
The cards come hardwired with a higher cost, and a risk -> gains mechanic for tokens, so obviously you'll be plying the risky waters of in a bid for more power. Try to pack in some of the obvious combos to get running on that archetype, Favor of the Moon, generators wherever you can get them (a bit of a rarity in the card lineup, so look to your off-class cards or friends to do that with you).
The unique bit for Armageddon to deal 3 damage in a hit will definitely come in handy and save you charges in the long run. The starting point of 3 charges (compared to Shrivelling's 4, is why you really cannot play Armageddon outside of a curse build.
Dont forget, you need to actually beat the penalties so an even higher baseline of than usual, with Relic Hunter and multiple copies of Holy Rosary and/or Crystal Pendulum to launch your starting point into the stratosphere.
Lastly, remember to pack a bit more resources than usual, you dont want to be too impoverished to play or run your assets!
Is this way ot playing better than the older variants? I dont think so, especially on hard where penalties can be straight up untenable, but if you're able to consistently flex tokens and overcome the penalties you'll certainly be a bit more powerful, but those are big IF's.