User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-28209103-20170326041552/@comment-4802891-20170326073156

I'm going to say Prometheus :

His brother isn't as famous as him, he had the divine rights to create Mankind but got punished for his trickery (lowering his Divinity and inherent powers in the process), he inherited Chiron's immortality which would explain his Endurance rank, he is the one who taught Mankind knowledge of arts and crafting -- which would fit with the effects of his NP (and maybe the Conceptual aspect is the fire of the Gods, allowing mankind to craft stuff, including Noble Phantasms?), his name means "thinking before acting" which is a non-magical way of having foresight (at least for short-term string of actions) and... "??? Blood A" could be Titan's Blood A for being a 2nd generation Titan, lowering the ranking slightly from a presumed EX rank of the original 12.

phew