With a certain thing, and another thing, and then add bless, a hero warrior can be damn near immune to spells without any save gear. Example, I can get like -15 svs on a normal character with warcry, and another -15 or so from bless, thats -30 right off the bat without much work at all.

But yeah, you should be able to at least do the yell thing even if it has no added effect.