Emeralds

In the context of the Eight Magics of Domundus, Emeralds are crystals that seem extremely similar in appearance to regular emeralds at first, but have the express difference of being able to influence gravity and and grow on their own.

Any creature that comes into physical contact with an Emerald can Bind an object--or sometimes even creature--to the Emerald, causing it to be affected by whatever gravity modification the Emerald possesses, be that cancelling the effects of gravity altogether or just making the targeted object seem a little heavier.

Properties
Each naturally occurring Emerald has different properties, which make it special and suited for different uses depending on its properties.

Function/Rate of change
Each Emerald has a specific function of its size by which all of its properties increase. The most commonplace rates are those that slow down as an Emerald grows, making the splitting of Emeralds to have more weaker ones a viable and popular way of farming them.

Other than the commonplace functions, there are cases in which an Emerald does not adhere to a classic constantly growing function, but instead follows one that either stops entirely for a certain time or even decreases at some points, causing the Emerald's properties to decrease. This has been linked to a few rare cases in which some properties of an Emerald--namely its gravitational change--actually inverted, causing an emerald which used to enhance gravity to lessen it, instead.

Binding candidates
Are the things that an Emerald has the ability to bind to. It can be one or more of the following:


 * inanimate solid objects
 * contained liquids
 * liquids
 * living creatures

Binding feel
A property of Emeralds that often comes as a surprise to newbie users is that, when one selects what to bind an Emerald to, each Emerald gives the user a different feeling of feedback.


 * seeping an aura into the target
 * enveloping the target with an invisible aura

Range of Binding
Designates where the thing an Emerald can be Bound to must be in relation to the Emerald. It is possible for an Emerald to descend down this list if it is split and made smaller. It is also a given that an Emerald's range includes the ones shorter than its designated one.


 * Ranged. The Emerald has a Binding range that is defined with the function of its size. This range emanates from any point of the Emerald.
 * In contact with the user. The things the Emerald can be Bound to must be in physical contact with either the Emerald or User.
 * In contact with the Emerald. The things the Emerald can be Bound to must be in physical contact with the Emerald.
 * Direct contact / user. Mostly used for making oneself lighter for ease of movement or heavier for training purposes.
 * Itself. In rare and somewhat ironic cases, a naturally occurring Emerald only has the ability to be Bound to itself, making the only thing it can affect be itself, and as either a direct or indirect consequence cannot be interacted with via touch by a user. However, once an Emerald has been reduced in size enough to get to this stage, it has effectively been destroyed or rendered useless as it Unbinds upon splitting due to its capacity dropping, and the inability to be interacted with by a user. One such Emerald can be manually Bound with the use of other magics in order to make it grow again to a sufficient size to be interacted with regularly.

Binding capacity
Each Emerald has a capacity of stuff that it can Bind. The capacity of Emeralds as a whole is not a consistent thing, and as such must be evaluated on a case-by-case basis. However, each Emerald has a set capacity which changes with its size. Most often, an Emerald's capacity is more sensitive to either the volume or density of the thing it is Binding, although more abstract measures like roundness, spikiness or even heat have been observed.

Gravitational change:

 * Enhancement of gravity upon target. Strongest known enhancement factor is about 31 times Domundian gravity.
 * Dampening of gravity upon target. Strongest known dampening indistinguishable from complete gravity cancellation.
 * Changing gravitational change depending on the distance from the Emerald. This is most often separate even from an Emerald's rate / function, and is just a weakening of the Emerald's effect with distance put between it and whatever it is Bound to.

Remaining Bound
After an Emerald is Bound to something, it will have an upper limit to how far away from the Bound thing it can go before the two naturally get Unbound.

Growth
While an Emerald is Bound to something, it will passively grow in size. Compared to a regular, non-magical emerald, Emeralds grow at a stunning speed, but to a regular human span of time it is often barely noticeable even after being observed for multiple days.