from the rules:
"Bobby Butterfingers pulls at his wizard’s coat. This time he must not spoil his magician’s exam. Slowly and carefully, he takes the big magic cube from the pedestal. 'Now, how did that correct spell go?'. Then he remembers. With a firm voice he shouts 'Butterfingers Cube', takes his magic ring and lets it skillfully fall into the cube. The other apprentices hold their breath - if nothing falls out of the cube, Bobby will pass the test.

Whoever can hold the magic cube with a steady hand and skillfully let the objects fall inside, will be left at the end of the game with the fewest objects in front of them."