Call to Arms

Call to Arms is a weekly challenge given by Lord Shaxx in Destiny 2.

Overview
Players must complete Crucible matches. A single completed match grants 15% towards the goal, with a bonus for kills and assists; an average match should net between 20 and 30%. Completing the Call to Arms rewards one Luminous Engram, which can drop Nightfall-quality loot. Players on Xbox One will complete an achievement if Call to Arms is completed.

The PvE equivalent of this activity is the weekly Flashpoint.