At the moment, Tristan felt extremely elated; why wouldn't he?
The moment he was stuck in a dilemma, an opportunity had come and presented itself to him.
He had been carrying the limbless, blind elf around and using the other party for quite some time, and now, it was a good time for him to pay the latter back.
To make the best out of the current situation, Tristan decided to use his new upgraded skill on Elroth.
After going through an upgrade, the new [Blood Synthetic] skill of his had the capabilities of forming organic beings, unlike its previous state where it could only form into inorganic matter.
Of course, this didn't mean the innate skill was able to form a new life. Instead, one could say it was only able to form the extension of it. In Elroth's case, it was his eyes and limbs that were lost. Hence, the reason for the miraculous sight of Elroth's missing parts of body returning back to their owner.