Overwhelm

• Unlocks : Divine Gaze, Creates semi-circular totem of 8 meters at distance of 50 meters in any direction.
• Enemies within range gain a stack of Expose, stacking up to 10 times. Stacks are lost after 5 seconds.
• The Sunward Phalanx deals 40% increased damage against enemies with 5 stacks of Expose.
• Base Cooldown: 50 seconds
• Base Duration: 15 seconds

How to get it A seasonal challenge, or the box from the Doctrine Dash event. That event runs every season, when purple lock ends and the gold era starts.