You're all dragons, and over the centuries, you've accumulated an extraordinary hoard. Every so often, you get together to prove you have the best hoard of stuff. Rummage through your hoard to bring your best stuff to show off to other dragons, and the most powerful objects of each type get to take a new object home with them.
The problem is your hoard is enormous, loosely organised, and you genuinely cannot remember exactly where you put everything. You know it is all in there somewhere. You just need to rummage a little. Maybe a lot. Possibly too much.
Choose to rummage through your hoard or stop, but don't bring more power than your display can handle. During the drafting phase, you'll collect some more Treasure for having the most powerful Treasure of a type. Have the best collection to win!