Expansion to the base set that is based around the mischief of Q, this set included two Side Decks, extra stacks of cards from which you could draw under certain circumstances (This became a predecessor to downloading and was the first time you could exercise any control over what you would draw); and introduced several new card-types: 'Q-related' Events, Interrupts and Dilemmas. QC was released in 15-card expansion packs and the set included 121 cards.