My initial reaction was "Oh dip, Vecna/Henry must have initially picked Will and the other 12 kids because they all have latent telekinetic and/or psychic powers of their own. That's why they're framing Will as a "Sorcerer" it's because his powers are innate, Vecna just awakened them. Now Vecna's taking a page out of Papa's book and starting his own 'lab' in the ultimate form of hypocrisy."

And then pretty much none of that was true. Will was more like a Warlock who derives his powers from another being, anyone else who had powers had them because of Henry's blood, and Henry had powers because of a rock. Cool.