Magic Nexus

Magic in the world is distributed in what is known as the Weave which can be tugged on through spells to cause various effects. The threads that make up the weave are mostly spread evenly across the planes, but there are locations and times where they leave gaps and locations and times where they become extra dense. A magic nexus is a case of the latter.
A Nexus can take many forms and be many sizes. Most of the city of Solaris is one giant exist that primarily enhances transmutation and teleportation magic. This intensity in those forms of magic is what allows it to have constant access to water despite being in the middle of the desert, and what allows it to have direct trade routes with various other cities. Other times, a Nexus is locked to a time. For instance, the various solstices, as well as the full moon, might affect the magic of some places.
It's less common for a nexus to affect any non-arcane magic, but it happens. And when it does happen, it's usually at the location of an important temple.

Type

Metaphysical, Arcane