In Crucible matches, defeat opponents with precision final blows, defeat opponents with melee final blows while using a [Stasis] Stasis subclass, and collect Stasis Essence.
Stasis Essence has a chance to drop when defeating frozen Guardians.
"Whatever you believe about Stasis, it's part of our arsenal now. We can either fumble around like children, or master it through practice." —Lord Shaxx