Alabaster is a man of moderate height with medium brown hair that he wears tied half up and half down. He has a medium length scruffy beard and deep, piercing eyes that seem to be looking at something far beyond the current room. He wears functional, weathered robes stained by the salts of many different worlds.

Alabaster is quiet and contemplative, often pausing mid sentence as if listening to a distant melody. He views the Material Plane as one room in a vast mansion and is often frustrated by the narrow mindedness of those who never leave it. He is deeply compassionate but appears aloof because his mind is usually calculating the stability of planar boundaries.

Alabaster was once a simple scholar who stumbled upon a rift in reality within a forgotten monastery. For decades, he lived as a hermit in a space between worlds, witnessing the shifting tides of the multiverse. He has navigated the silver voids of the Astral Sea and the shifting sands of Mechanus, slowly piecing together the true nature of reality. He identifies as a planeswalker archmage, though his current power is only a fraction of what he witnessed in the deep cosmos. He has returned to the Material Plane because he sensed a growing instability that threatens to collapse several adjacent dimensions into one another. His goal is to find the source of this planar friction and mend it before the worlds tear each other apart. His scruffy beard and half tied hair are remnants of a life spent without mirrors, where the only thing that mattered was the alignment of the stars and the hum of the portal stones.