No flips for you!
OOH! Do hitpoints next! What does the discussion of how many hitpoints a character has look in fiction?I really don't think most of these are metacurrencies. For example, I would assume that the caster is actually aware how many spells and how powerful they're able to cast and they're aware of the causal effects these spells have. This is not metacurrency. If the characters could more or less accurately discuss the thing in character (perhaps not using the exact mechanical terms) then it is not metacurrency. granted, some of these are weirder, like battlemaster manoeuvres. It would feel a bit weird that the character would know how many of these they could pull off. Though this is more to do with we having intuitive understanding that this is not how this would work in real world, whereas we have no such assumptions in magic.