Four Elements

The are recurring in .
==Overview==
The are the crystalline forms of energy that the world depends on. They were first shown in , but their significance was not revealed until . They are based on the classical elements: , , , and .
==Appearances==
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The can be briefly seen in the introduction sequence of , in front of the altar where is sealed. The upper parts of the Keys received from are also designed after them.
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In , the importance of the was revealed. They are the source of power of the , each granting the wielder of the sword another "clone". In order to save and stop , had to find each , scattered in four throughout . Each time he finds a new , brings it to the to infuse into his sword.
==List of the ==
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The is the first of the to be gathered in . It is obtained in in the , and is needed along with the for to make the from the reforged .
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The is the second of the gathered in , obtained in the on . This, along with the , is needed for to create the from the reforged .
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The is the third of the collected by in . It is found in the in . Its power is infused into the .
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The is the fourth and final of the gathered in . Once infused into the , it becomes the legendary blade, the . Although expected to be found in the after defeating , it is instead located in the among the .
==Nomenclature==
==See Also==
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