Streamline
Sam kept his eye on the black skeleton throughout the fight.
He examined it through the energy vision. The fight went on for hours before he noticed that orb of red in the middle of the skeleton's core. Once that came, he gave instructions.
"All your patience is about to pay up guys. Follow my lead and keep it busy."
Sam activated his light fusion. While the guys fought the skeleton and kept it busy, he transformed himself into a beam of light and zapped towards the core.
He bore a hole through the skeleton at exactly the spot where the red orb is. The skeleton froze on the spot. The rest of the team immediately doubled down with the attacks, destroying it completely. The skeleton crumbled into pieces.
The participants still didn't relax. They are vigilant and didn't want to let their guards down. They guessed that the skeleton will reassemble again. But to their surprise, it didn't. The skeleton is now nothing more than a bundle of black bones.