In the heart of Eclipse Forest, twenty students from the [Research Department] gathered, their curiosity piqued by the looming presence of a massive tree monster. Samuel, the focal point of their attention, began to elucidate the creature's identity.
"This magnificent specimen is known as the Umbric Arbor. Its roots extend deep into the arcane, granting it control over shadow and darkness. However, every power comes with its vulnerabilities. The Umbric Arbor has a weakness to radiant energy, so be cautious if you possess any light-based skills."
As Samuel continued his lecture, the Umbric Arbor stood as a colossal sentinel, its gnarled branches reaching out like skeletal fingers. The air around it seemed to thicken with an ominous presence, and its darkened bark exuded an ethereal glow.