this banner is a "skink only" banner, but if a skink hero with the banner is, in example, in a saurus unit, does the unit gain the benefits of the banner?
That's one that's been debated before, I don't think there has been an official ruling as of yet. I would say yes, but others would say no. So really it'd be better to discuss with your opponents first.
yes it has been debated alot, and no real consensus seem to be reached (i say it works though). HOWEVER, even if it does work, you will almost always be better off with a scar vet BSB since his increased combat potential (not to mention survivability) usually more than makes up for the loss of frenzy on the unit.