| Category | Marvels |
| Location | by world |
| Built | by world |
A Cube of Arcane is an enormous object, fifty miles on a side, blue-gray in color, humming with magic, a battery of arcane energy for its surrounding world. Devices of Creation, they each begin as an anchor for the rapid build-out of an entire world.
The raw materials, the energies for making a Sphere are readily available. The flotsam of Chaos, the remnants of smashed worlds and countless civilizations of the Lost Ages, the building blocks for a new world, a clean slate for the most part.
- Netch'a, 11th Order Instructor at Belras Foroderch - "World Builders"
On 19 Bloom 1301 DE, the Cube on the world of Kriav lost its structural integrity, collapsing upon itself in what became known as the Cube Collapse.
All Cubes of Arcane produce vibrations and energy surges, usually creating an uninhabitable area of up to a hundred miles, and deadly to most anything getting within five miles.
Worlds with a Cube of Arcane allow the re-charging of arcane spells, the creation of magic items, and other uses of arcane energy. Without the use of rift-making devices like null mines, Cubes of Arcane also protect a world from being an exit point for a rift or entry by way of teleportation. A world without a Cube is magic dead.
| Specific Name | Built | Location |
|---|---|---|
| COA 411 | 1 Temporal 1451 DE | Bal-Kriav |