[GDB]

Originally Posted by Ithekro

Would there be a reason for him to live that long without the Wars?

His undying love for Justivka?

Spoiler for Cards:

They've also said that the cards are unrelated to the Grail War (which makes sense, since the Grail War using the normal summoning approach), so it's possible that Zouken was behind the creation of the cards in the first place. It fits with what the Makiri gave to the process of the war, what with the binding and all.