There are also cards that make you switch hands. And you can pile on to draw cards as long as it’s an equal or higher number.
Draw 2?
Let’s add a Draw 4 to that and make the next person draw 6.
Nope, I’m going to play a reverse Draw 4 and now you’re drawing 10.
But wait - there’s also a DRAW 10
They balance it out a bit with a few other cards, but man…