How can I fix my Will save?

[Bad Paper]

Iron Will - +2 to all Will saves. Not a Fighter bonus feat. A +2 bonus for a non-bonus feat slot is pretty poor IMO. I feel that if it were +3 it would be a strong candidate and at +4 it would definitely worth taking.

I agree. As an epic feat, it is certainly worth taking.

For the rest of us, there's Iron Will, which I think you are under-rating. If you want cheese, then dip into barbarian and revel in its rage boost to Will saves. And tell your cleric to memorize some of the resistance spells from Spell Compendihoo. There are some all-day ones that will do the trick for you.

 

[Darklone]

... Spell Compendihoo. There are some all-day ones that will do the trick for you.

The more I hear about that thing, the less I like it.

 

[Bagpuss]

If you're using the PHB2, I understand there's a pretty broken feat in there that lets you roll two Will saves and take the better of the two. Someone did the math on it and it essentially gives you a +7 to your Will save for the cost of a single feat.

Your not thinking of a Luck feat from the Complete Scoundrel by mistake are you?