Right. This is not a character, which would or should be played in practice.
It's not even really a character, it's just a bunch of stats and classes.
Maybe a fun exercise, but nothing for a roleplaying game.
But apart from that... while the saves certainly are good, as I said, they are not everything.
A "simple" Cleric 10/RandomClericPrC 10 also has a +14 base save in Fort and Will and +6 in Ref, +15 BAB, plus 9th level spells, where there are quite a few, which can add to saves and BAB as well.
So, you got some weak spells and special abilities and a few more points in saves and BAB; and don't forget how badly mangled your choice of feats and skills must look after going through all those prestige classes (dunno what Deepwarden/Blacksmith is or where it is from, but True Believer, Dodge, Endurance, Toughness alone are a tough price to pay, and I'm sure that list isn't complete yet).
Compare that to the power 9th level spells give you.
I know what I find more impressive.
Bye
Thanee