Talk:The Celestial Dragons/@comment-198.228.201.150-20140715120132/@comment-24738360-20140715234140

Let's see.

Mono Water, Mono Fire, Mono Earth, Mono Air, Mono Spirit

Spirit/Water, Spirit/Earth, Spirit/Air, Spirit/Fire

Fire/Water, Fire/Air, Fire/Earth

Water/Air, Water/Earth,

Air/Earth

Wikia Contributor is correct, there are 15 possible element combos not including Starmetal.