Trinary Egg

This iridescent egg is disorienting to look at, constantly out of focus and overlaid by two afterimages. The trinary egg contains energy that doesn't exist in this reality, but forms a trinary with life and death. Pulled from an alternate reality where this trinary is the natural order of things, the trinary egg is magically resonant, enabling a spellcaster to leverage the trinary egg's power to balance the forces of life and death.