Basically, this is a forum game which begins with a list of things, which can be anything as long as they fit a theme (in this case the RPG's elements), and which all begin with an equal number of "points" assigned to them. Since this is such a long list, they start with only a few points each; I've decided on 5.
Every time somebody posts, they remove one point from one element, and add it to another.
If an element has no points left, it is removed from the list and the game continues. It can theoretically reach an end when, after a ridiculous number of posts, the list is reduced to a single element, but this takes an eternity and is unlikely to happen.
Here is the list: (I have made my alterations, as an example of what to do)
Antimatter -- 5
Atom -- 5
Aura -- 5
Blah -- 4
Blood -- 5
Chaos -- 5
Chess -- 5
Chthonic -- 5
Crystal -- 5
Cuteness -- 5
Darkness -- 5
Data -- 5
Earth -- 5
Explosion -- 5
Fabric -- 5
Fairy -- 5
Fire -- 5
Gem -- 5
Heart -- 5
Hito-Fille -- 5
Hito-Garcon -- 5
Hito-Mystere -- 5
Hope -- 5
Ice -- 5
Illusion -- 5
Laser -- 5
Light -- 5
Lunar -- 5
Magic -- 5
Metal -- 5
Money -- 5
Mythic -- 5
Nature -- 5
None -- 5
Oil -- 5
Paper -- 5
Physical -- 5
Pizza -- 5
Plasma -- 5
Poison -- 5
Psychic -- 5
Quintessence -- 5
Serpentine -- 5
Solar -- 5
Sound -- 5
Spacetime -- 5
Spirit -- 5
Squirrel -- 5
Star -- 6
Summon -- 5
Thunder -- 5
Truth -- 5
Void -- 5
Water -- 5
Wind -- 5