Defeat combatants in Nightfalls and the Guardian Games Competitive mode. Higher difficulty Nightfalls grant more progress.Completing Nightfalls with higher final blows grants increased progress. Guardian Games Competitive mode and Legend difficulty or higher Nightfalls grant the most efficient progress.
Defeat combatants in Nightfalls or Expert Rushdown. Higher difficulty Nightfalls grant more progress.
Completing the activities with more final blows grants increased progress.