When a card effect says 'discard X, then draw Y' but you have fewer than X cards in hand, do you discard what you can and draw, or does nothing happen?

Ruling: When a card effect says "discard X, then draw Y", the discard is not mandatory. You discard as many cards as you can (including zero if your hand is empty) and then draw Y cards.

Nuances:

• If the text instead says "discard X to draw Y", then the discard IS mandatory and you must discard the full amount to get the draw effect
• The judge's ruling that nothing happens when you can't discard the full amount was incorrect