Improved Saves: Is This Feat Good?

[noce]

Luck of Heroes is a Regional feat from Player's Guide to Faerun.
This means it requires to be of one of the races listed, from one of the regions listed, and to take that feat at first level.

I cannot explicitly describe the feat, but it's half the proposed feat, plus another minor benefit.

That said, yes, I think this feat is unbalanced, and I'd always consider it on a mundane build.
After all, in my experience a failed save is the most likely end mundane characters encounter.