The world of Terminus has dramatically transformed over thousands of years through a recurring phenomena known as Planar Collisions: mysterious events where pieces of foreign worlds and realms are embedded into Terminus, bringing portions of their native people, creatures, landforms, deities and ethereal energies with them.
In Terminus, this ethereal energy is a tangible essence known as Mana. Mana can manifest in many different colors, each having its own unique properties, strengths and weaknesses. After being subjected to these Planar Collisions for millennia, the native Mana energies of each new realm have slowly mingled and branched out in different combinations creating a web of different fields that affect the denizens of Terminus in different ways. We call these colored mana fields: Mana Climates.