Arena server for Neverwinter Nights at address eternalwar.us 5121. This PvP server based on Good vs. Evil where players start at level 7 and max at 20. NO expansion paks required. eMail rklesla@gmail.com for an account.
The spell as stands is pretty much completely useless. I suggest changing it to a flat +4 fortitude bonus so that there is actually some reason to use it.
+4 fortitude is a bit strong, it's useful against assassins and blackguards as of now. Mages can already get enough saves with their protection from spells spell.
How about +2 fort? Lots of things can affect fort and it could be useful as a low level spell especially against druids and such. But it was +4 against poison because it is a specific save. Changing it to +4 to every soft save would be a little overkill.