Magic Conductor

MC

Conductors of magic, can come in any form but often as something wearable such as rings.

Like oil, it requires specialized companies

Yi, enchantable material (i.e., bronze, gems)

Yi is drilled from the earth and then burned into the material it is to be bonded with.

Depending on what it's bonded to and where it's from, it can be very cheap or very expensive. Yi drilled from the ocean and Leos is the most expensive.

Common

Yi

To allow people to access and use magic

There is only a certain amount of Yi stored in a device. It can be accessed and used for as wide a range of purposes as the user is able to think up, so long as there's enough magic to conduct it.