Talk:List of Elemental Abilities/@comment-108.28.241.84-20130425003414/@comment-71.65.65.195-20130522203543

Those are the basic elementals that make up all elementals. For example, What they explained in "The Avatar" that Plant Manipulation is a hybrid of Water and Earth. I would think that a hybrid for Metal out of those would be Earth and Fire since Metal is found in Earth and is forged and shaped by Fire. :)