Magicians shhh not found

I’ve been playing carnival hunt for a few days now and I have been loving and if I do say so myself steam rolling through games with the magician, however after watching a few videos I’ve seen that they have been talking about a shhh ability for aura reading that the magician has but I have never seen it and I can’t find the keybind setting for it. I’m just confused if this is a bug or me just being really stupid.