The skeleton was caught in the middle of its attack. Lua had managed to successfully freeze it, but that wasn't for long. The skull was still missing, and Lua couldn't keep it up for much longer.
In this state, he was practically immobile. Maintaining the field of heat drained him to the core, meaning he didn't have any energy to spare for moving around.
"Destroy it!" Lua yelled to Fren, but he didn't need to. Fren had already rushed forward and begun attacking the skeleton. Fren sliced and sliced, cutting off many vital components for the skeleton to move. He practically assured that it wouldn't be able to wield a sword once more.
The skeleton King collapsed to the floor, its fingers separated from its hand. Although there was the risk of Lua and Fren not being able to keep track of each body part, when they were reduced to small such sizes, they were hardly a threat either way. Lua wanted to find a way to kill it permanently.