The Attribute Spirits are a group of monsters with "Spirit" 「精霊」 in their name; however, they are not Spirit monsters. They each belong to one of the four elemental Attributes: EARTH, FIRE, WATER, and WIND. Being Special Summon-only monsters, their conditions for being Special Summoned are that you must banish one of your monsters in your Graveyard with the same Attribute. There is another set of monsters with similar effects and conditions, but these do not include "Spirit" in their name, and some require you to remove two monsters of the proper Attribute instead of one. In the Yu-Gi-Oh! GX anime, these cards were part of Lyman Banner's/Amnael's Alchemy Deck, used as part of the cost for "Elemental Absorber".