Hello! Simply I think that the spell Ironguts makes a lot of sense of the Ranger spell list, especially as a low-level, high utility, survival-oriented option (which is best for many ranger builds).
Thanks!
While I don't want to give FE:Human rangers more goodies I do agree though that Ironguts makes sense for the ranger class as a whole ... maybe add it to one of the less utilized FEs as a spell? Or maybe as a permanent effect?
FE reptile/vermin also grant +4 versus poison each.