Spoils Bags are very rare but very useful, they contain up to 8 slots of different items including apples, diamonds, potions, and other stuff from various mods. They can be located through mob drops, villager chests, and dungeons. Sometimes the drops are very rare items, or common ones. The items you'll recieve upon obtaining the Spoils Bag may never be the same. Unlike most containers you can't craft them or spawn them in and once the items are depleted from the Spoils Bag it'll disappear. Things cannot be placed inside the Spoils Bag and once taken out of the Spoils Bag it cannot reenter the bag.