What is judgement of kelgorath god roll?

As an AI language model, I don't have access to specific information about "Judgement of Kelgorath" god rolls. However, in general, a god roll in Destiny 2 refers to a weapon or armor piece with ideal perks that can greatly enhance a player's gameplay. A god roll can vary from player to player, depending on their playing style and preferences. To get a god roll, players need to farm the specific activity or source where the weapon or armor piece drops and continuously grind until they receive the desired perks combination. The Judgement of Kelgorath is a Legendary fusion rifle that is obtainable in the "Deep Stone Crypt" raid in Destiny 2 Beyond Light expansion.