Bag of Sorting

The bag of sorting can hold any number of items, but to retrieve them, you must state a category, all items fulfilling this category are retrieved and unceremoniously spat out of the bottom of the bag.

Acceptable categories are colors and item types (scroll, book, sword, etc.).

Items cannot be removed from the bag of sorting unless 10 or more items will be retrieved because there is no point in making a category for only 9 or less items.