Fire element is compatible with earth element because burning of woods become an ashes.
Earth element is compatible with metal element for metal is found beneath the earth.
Metal element is compatible with water element due to the fact that metal turns to liquid when it is heated.
Water element is compatible with wood because wood needs water to live.
– See more at: http://elflora.net/763/guides-to-compatibility-in-relationship#sthash.cvuFzm8K.dpuf
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