Long time lurker, though i try to be helpful where possible, here's something for now. Well, I'm an alchemist, and I have a flask of the north. This provides 40 to one stats based upon your spec. counts as both a guardian and battle elixir. Stat scrolls count as guardian or battle as well according to their tooltips. But I can stack my flask, 2 scrolls, and mark (the behavior of mark used to be not to allow you to use stat increases or armor increases because it was 'better', I guess that is changed now that it is % based.) Screenshot below with the tooltips from the other added onto it.