Duorda's Purpose?

Duorda was laughing heartily as Jack tore through the skeleton horde. Flaming wind blades flew everywhere as Jack was seemingly teleporting from one part of the horde to the next. His speed was incredible and overwhelming, leaving many of the less adaptable skeletons to face their demise.

It was simple for Jack to eliminate the skeletons, even if they had such great equipment. They were far too slow to keep up with him and their levels weren't enough to withstand a higher-leveled hero with a plethora of powerful passive skills. 

"Amazing…" Duorda sighed, letting loose another pulse of dark energy. However, this didn't summon anything. Rather, it caused the remaining skeletons to return to their slumber underground.

Jack dropped his transformation momentarily, staring at Duorda. "What are you up to?"