"Black cards either present fill-in-the-blank statements, or they directly ask a question."
These must have 0-3 blanks, which you can add in with underscores. Doesn't matter how many underscores you have per blank.
Samples: _ was found with a potato in their _______., Who would you most trust with a bar of soap?, 1. ___ 2. ____ 3. ??? 4. Profit!
White cards
"The part of speech of a white card is either a noun or a gerund, including both single words and phrase constructions."
Samples: Banhammering., Anyone but Manslayer., A pointless argument with Mage246.