Daits How You Do It

Needs All Under Heaven. The Found Dai Viet decision wants the Kingdoms of Viet and Champa, independence, Viet culture, your capital in Viet, and 2,000 prestige. Start Viet in 1178 (quickest - Champa isn't your tributary at that date, so no truce slows the conquest), take Champa with county-expansion CBs, and mind the wiki's observation that the PRESTIGE is usually the slow part: hold a Coronation and swear an Expand the Realm Oath before the first war to get the meter moving. Then take the decision. Rolls naturally into the Mandala family - Humble Beginnings, Devaraja, A Living God on Earth.