how many things can u use the ashen mist on?

i've used it on the two giants in the forest of giants, r there anymore?

There's 3 giants in the forest that it can be used on. Which two have you done?

Four: 3 in the forest and 1 in the place where you fight the duke's dear freja.

i dont think it can be used on the giant you are mentioning,at least for taking soul of a giant