Ancient warriors that were controlled by Eternal Control Shards were the most powerful, as they were several times stronger than figures and Iron Blood warriors. However, any damage they happened to suffer was completely irreparable.
If the damages were severe enough, the ancient warriors were as good as dead. The figures, on the other hand, could be repaired as long as their souls were intact, which would then allow Saleen to return the damaged ones to full combat capacity by using his Star Gathering Needle.
This was similar to the difference between scrolls and magic books. While scrolls were cheap, they could only be used once, whereas magic books could be used repeatedly. As for high level magic books, they were so powerful that they were basically indestructible!
"Sir, thank you," Saleen thanked Gaine solemnly.
