MBTI: The Holy Grail War

On a planet somewhere in the universe, there are four continents and one small island. Everywhere else is covered by ocean. The four continents are SP, the Yellow People’s Continent; SJ, the Blue People’s Continent; NF, the Green People’s Continent; and NT, the Purple People’s Continent. As for the island, a Holy Grail appears there once every hundred years. When it does, an empty city forms on the island, and each continent sends four warriors to compete for the Holy Grail on its behalf. The Grail can grant wishes: eternal life, the greatest fortune, or the submission of all people. But the creation of any great power requires the wisher to pay a price. If it were you, what would you wish for?