The Deal with the Devil is a side quest in Baldur’s Gate 3 in which you can make a deal with Raphael to help him cure you of the tadpole.
If you have heard the phrase Devil in Disguise, you will see its prime example in one character named Raphael. He first appears in Act 1 on the way to the Goblin Camp, where he offers you a chance to remove your tadpoles. He doesn’t give a cure but simply toys with you and sends you back. It won’t be until Act 3 when he offers you a deal in the form of the Deal with the Devil side quest in Baldur’s Gate 3.
But how should you deal with the devil, Raphael, and should you even do it? Raphael offers to remove the tadpole in your head, and in exchange, he wants the Crown of Karsus. He’ll even throw a bonus on top, should you accept. But every choice has consequences, and so does this one.Deal with the Devil quest walkthrough
This is not the first time you will have to choose either to accept or reject Raphael’s deal in Baldur’s Gate 3. Early on during Act 1, you will be approached by Raphael. He possesses a silver tongue and an unholy charm to it as well.
He offers you a chance to get rid of your tadpole. He also reveals he is a devil, albeit a lower-ranking one. You are given a choice to either accept or reject his offer. At this point in the story, your choice will have little consequence. But if you reject his offer and call him mad, some of your companions will approve of this decision.
In Act 2, he shows up again and offers you something interesting in return for a favor. However, this is a bit different since he wants you to kill an old enemy of his, another devil called Yurgir. If you have Astarion in your party, he will urge you to accept in exchange for information. If you accept and kill Yurgir, Astarion will get some information regarding the infernal markings on his back.
The real deal comes up in Act 3 when he again offers to remove the tadpole in your head. Once you reach the Lower City, go to Sharess’ Caress tavern. Talk to Raphael’s assistants on the first floor, and they will guide you to him. Talk to Raphael, he will offer you a deal, formally beginning Deal with the Devil side quest.