Orb of Spiritual Dominion

This spherical orb is about 5 inches in diameter, weighty for its size and perfectly smooth, as if carved from a single knot of midnight glass. Red and black designs coil across its surface in layered spirals and hexes, resembling both blood vessels and binding circles. When held, it pulses with a slow inner beat like a second heart. Tiny motes of shadow drift beneath the glass, and when the orb is fed a soul, the red patterns flare like fresh ink in candlelight.