Bionicle Elemental System
There are six core elements in this version of Bionicle Lore, and blending two Core elements will create a Blended element. Blending an element with its opposite will create a Legendary Force; Fire and Water make Time, Earth and Air make Life, Light and Shadow make Creation. These are oft aligned with Unity, Duty, and Destiny, the three virtues, though which force aligns with which virtue is a matter of serious debate in philosophical circles.
Fire is the Core Element of Energy, a source of fuel for one’s self and for the world.
Fire and Stone’s blended element is Iron.
Fire and Air’s blended element is Lightning.
Fire and Light’s blended element is Plasma.
Fire and Shadow’s blended element is Instinct.
Stone is the Core Element of Stability, providing a firm base for the physical world to be built from.
Stone and Fire’s blended element is Iron.
Stone and Water’s blended element is Ice.
Stone and Light’s blended element is The Green.
Stone and Shadow’s blended element is The Earth.
Water is the Core Element of Change, transitioning things to the form they need to become.
Water and Stone’s blended element is Ice.
Water and Air’s blended element is Magnetism.
Water and Light’s blended element is Psionics.
Water and Shadow’s blended element is Decay.
Air is the Core Element of Motion, moving things around to wherever it is they need to be.
Air and Fire’s blended element is Lightning.
Air and Water’s blended element is Magnetism.
Air and Light’s blended element is Sonics.
Air and Shadow’s blended element is Gravity.
Light is the Core Element of Revelation, providing direction to one’s self and clarifying one’s role in the world.
Light and Fire’s blended element is Plasma.
Light and Stone’s blended element is The Green.
Light and Water’s blended elment is Psionics.
Light and Air’s blended element is Sonics.
Shadow is the Core Element of Unraveling, breaking apart the world so that it can be reforged anew.
Shadow and Fire’s blended element is Instinct.
Shadow and Stone’s blended element is Earth.
Shadow and Water’s blended element is Decay.
Shadow and Air’s blended element is Gravity.
A common organization for the elements in Matoran philosophy is the “Three Rings,” each centered around a single Legendary Force and with six elements set around them. These rings supposedly determine the sort of society a group of Matoran will form; Formative tribes interact often and create trade goods, Cyclical tribes are nomadic and form small tight-knit groups that wander where they are needed, and Anima tribes will integrate into and tend to larger tribes. This is mostly cultural stereotyping, left over from the different elemental tribes serving different roles in Mata Nui’s body.
The formative elements are those which are often used in the shaping of the world. Fire, Air, Earth, Water, Stone, and Ice. They are that which can be made and remade into many things. Some people consider them to be the primary elements of Matoran-kind, and it is true that Toa of those elements have had more historical impact than the others. Still, to say they're the only elements is a limited perspective. The Formative Elements fall under the Domain of Creation.
Each formative element has a matching Cyclical element, something that simply is in the world. Plasma, Lightning, Gravity, Magnetism, Iron, and Sonics. Cyclical elements are generally, they are modulated through their formative element. Plasma through Fire, Magnetism through Water... but they can exist without those guiding essentials. Of course, Elemental power is different from simply using an element. Many creatures can use lightning, but that does not mean they have Elemental Lightning within them, just that they can generate electricity. The Cyclical Elements are under the Domain of Time.
Then there are the six anima elements. The Green, Psionics, Light, Decay, Instinct, and Shadow. Of course, they can exist independently, every plant is made of the Green and little else, but when all are bound in a single form... that, that is what we call a soul. Toa of the Green and Psionics are generally those who tend to others, they are the menders of the world. Toa of Light are rare, and there are no Matoran tribes of Decay, Instinct, or Shadow. The Anima Elements fall under the Domain of Life.
Formative: Fire, Air, Earth, Water, Stone, Ice. Ruled by Creation.
Foundational: Plasma, Lightning, Gravity, Magnetism, Iron, Sonics. Ruled by Time.
Anima: Instinct, Light, Decay, Psionics, The Green, Shadow. Ruled by Life.