Over on the Dungeon World Discord, Razorkiss asked this interesting question:
Imagine you're trying to model scary Mythos tomes in DungeonWorld. Y'know, we're talking about The Necronomicon here. You want to create a custom move that represents the dangers of reading it, the dangers of gaining knowledge at the expense of sanity. I feel like the first instinct would be that this is a +WIS move, because, y'know, the Will save and all of its attendant baggage. But... is that the way you'd really want to go? It's basically saying, "Y'know, Wizard, you'd think you'd be the person who would be all over this custom move, but it turns out your buddies the Ranger, Druid, and Cleric are better-suited for this job..."
When you read the obviously evil book, roll +???
Queue discussion about whether it'd be an INT roll or CHA roll or whatever.
And my first instinct was to treat it the way I treat major arcana in Stonetop.
(discussion after the break)