2011-09-22 : If you only have one card in your graveyard when Make a Wish resolves, that card will be returned to your hand.

2011-09-22 : Make a Wish isn’t put into its owner’s graveyard until it is finished resolving, so it can’t be returned by its own effect.

2011-09-22 : The cards aren’t randomly chosen until Make a Wish resolves.