In this chapter of the Adi Parva of the Mahabharata, the births of various notable characters are described. Here is what it says about Duryodhana's uncle Shakuni:
Then was born the disciple of Prahlada, viz., Nagnajit, and also Suvala. And from Suvala was born a son, Sakuni, who from the curse of the gods became the slayer of creatures and the foe of virtue. And unto him was also born a daughter (Gandhari), the mother of Duryodhana.
I discuss Shakuni's uncle Nagnajit in my question here, but now I'm interested in the statement that Shakuni became an evil-doer due to "the curse of the gods". My question is, why exactly did the gods curse him?
As I discuss in this answer, Shakuni was an incarnation of Dwapara, the embodiment of the Dwapara Yuga. Now the embodiment of the Kali Yuga is a demon, but perhaps Dwapara is a god. In any case, are there any scriptures that describe the gods putting a curse on Dwapara? Or was the curse put on him after he was born as Shakuni?
Could this just be a figure of speech, indicating that he was destined in the divine plan to be an evil-doer, rather than alluding to a specific curse from the gods? It could be similar to how in the Bible, God is said to have hardened the Pharaoh's heart.