Who was the main culprit for the war Maharbharata?

In the Mahabharata epic, Sakuni (Duryodhana's maternal uncle) masterminded the infamous dice game that led to the Pandavas' exile and was a key instigator of the Kurukshetra war. His manipulation and cunning tactics, particularly during the gambling match, sowed seeds of the conflict. While Duryodhana was the face of the opposition, Sakuni's scheming was crucial.