If you do not want to directly face him, then you shouldn't. [ it's said as if it's the most obvious thing in the history of the world. Not just because of the whole brainwashing thing, but also because Strange knows he'll go to sixes and sevens if certain other fae show up to face the carnival. ]

We've some of the Prince's servants and some wounded at the carnival. Whatever we do, someone will need to stay behind and help those. If you wish, that can be your task.