Card of the Day - Phantom Army

This is a bit complicated.  It's more complicated than most cards I make, but I wanted it to have a certain feel.  This card is grokkable once you understand what's going on.

Your opponent has a creature, and suddenly there are three of that creature!  Which one should you block?  If you wanted to make a creature unblockable, there are easier ways. It seems like so much fun to play this little minigame.  I'm going to be using this one in playtesting for sure.