Tridurth's Heart

A palm-sized seedstone composed of ancient, calcified amber and dark, glass-like obsidian. The stone pulses with a faint bioluminescent light that shifts between three seasonal rhythms: a vibrant emerald green for the leaf, a jagged, pulsing crimson for the fang, and a pale crystalline white for the snow. It is perpetually warm to the touch and vibrates with a low hum like a steady breath. Tiny, translucent roots often reach out from its cracks, attempting to find soil.