Renedge

The current third planet in the the Renedge system, the planet of Renedge is a titanic disc world and a weapon of the gods. Controlled on its path by great powers and its own burgeoning sentience, it travels through its universe and collides with other worlds, tearing them asunder and collecting what remains.

The business end of Renedge and its most distinctive feature is the Edge of Renedge: a spinning accumulation of enormous amounts of matter and energy, concentrated into a bright circular ring a short distance from the outer circumference of the planet. This Edge pulverizes anything that comes into contact with it. However, worlds are vast, and those struck by Renedge are not fully annihilated. Their remnants smash into Renedge's rim and form new lands, with the survivors forming new civilizations or reforming the old. Generally, a world might leave behind a single continent's worth of landmass after collision, leaving possibly dozens of surviving civilizations stranded on the same land.

As a result of its long history and wandering travel, Renedge has collected people and places from a bewildering variety of worlds. Some continents bring exotic magics, species, or technology, while others retain nonstandard physical laws or cancel magic entirely. Fortunately for exploration, though, most continents do fall in line with Renedge's standard level of technology and rules of reality, so questing adventurers need not fear too much that their abilities or even magical biology will suddenly malfunction or fail.  

The Moon

Renedge's moon serves as a vault for exceptionally powerful weapons and relics.