a black obsidian obelisk with a pulsating blue orb floating above it

This obelisk is made of the smoothest obsidian that could possibly be found. Etched into it are runes and sigils which have been filled with gold, silver, and a mixture of ruby and emerald dust. Above it, about a foot in the air and spinning, is a sapphire blue orb which pulses with a light of its own.