Phantom Marble

Choose a player, and take one of their cards.
That card disappears.
"While Cheyenne and Daniel were playing
Mancala, Ladell walked by and stopped to
observe, and was like, 'Cheyenne, why didn't
you move that piece on the end? You could
have stolen Daniel's entire pile!' Cheyenne, Melissa,
and Daniel were very confused because
as they looked in the last hole, there was not a
marble to be found."