Armitage's page

From Cursed Blow:
"The curse places a penalty... equal to the level of the spell slot expended... with a successful save reducing the curse's penalty to -1 per level of the spell slot."

So expending a 3rd-level spell would create a -3 penalty, or a -3 penalty if the save is successful.
That certainly can't be right.

The Tapestry of Midnight description says "The Tapestry allows the user to control up to shadows at a time."

What number should be here?