The challenge is a someone will sit down their kid sibling and cover them with a blanket. The "magician" will say a fake spell, whip off the blanket, and gasp in surprise.
To top it off, they'll "take a picture" with their sibling and show them the picture they took earlier with the empty chair.
Most of the victims of the prank don't seem to appreciate their new superpower because they freak out!
Watch the videos to see the kids totally panic!