I've come up with a fun idea.
Stroking is fun right?
In the next 3 turns, if any LOW BLACK cards come up, you must DOUBLE the amount of strokes you have to do.
So an Ace will be 200, a 2 will be 400, a 3 will be 600, a 4 will be 800 and a 5 will be 1000.
Is this okay with you? hahaha