
Toadkiller Dog |

Not the answer you are looking for, but there aren't that many spells that specifically give a bonus on will saving throws, and those that do, don't include the wording you wrote. For example, Mind Blank, the most famous spell for resisting mental influences doesn't contain that phrase.
Quote:
This spell also grants a +8 resistance bonus on saving throws against all mind-affecting spells and effects.
See? No will saves.
My suggestion is, if you do need an answer for a question like that, is to ask your fellow games in Rules thread. Off the top of my head, the best spell for what you're looking for is Heroism.