A non-transitive elemental dice game

[Jorlem]

I'm kind of confused. If you are water aspected, then you will roll either 1, 2, 16, 17, 18, or 19 dice? Or you just roll some number of dice and use the total, or something? How many dice? If you could explain this step by step, it would probably be easier to follow. ("Each player rolls all four (...) to determine..." All four what? Dice? Elements? I'm confused.)
-----
Stand between the Silver Crystal and the Golden Sea.
"Youngsters these days just have no appreciation for the magnificence of the legendary cucumber."  --Krityan Elder, Tales of Vesperia.