Pokémon Super Mystery Dungeon/Emeras

Emeras are one of the many different types of items that are extremely useful. Unlike other items, they follow special rules.
 * They cannot be taken out of dungeons.
 * They can either be used in Looplets to give you powerful buffs or used on you to increase one of your stats depending on the color
 * The stat increases, like the Emeras themselves, are temporary, and revert to normal when you exit a dungeon.
 * The Emeras only actually do anything when they are equipped to a Looplet. Otherwise, they just take up inventory space, so always have a Looplet ready when you pick up an Emera.