Each of the packages inside are meant to be handed out to trick-or-treaters on Halloween night, or traded amongst friends during their festivities
After the subgame ends, each player shuffles their cards from the subgame to re-form their main-game library (and Attraction deck, if applicable), and they return to the main game from the point they left off, with Tug of War finishing resolving and the winner of the subgame getting their reward
card attached to another card gives a +1000 Power bonus
A clone copies the complete text of whatever its cloning, so the second clone becomes a copy of what the original clone copied
Lets see what we can trim, starting with the top of our curve
By itself its fine, but it definitely needs some support to make a strategy to keep its effect relevant