History of Gunnora's Seal

Overview

Gunnora's Seal is a base Triumph of the Iron Lord title in Destiny 2. It needs 15 unique Iron Banner armor pieces. Duplicates do not count.

How to complete

1. Play Iron Banner matches to earn Iron Banner engrams.
2. Redeem the engrams for a chance at the current season's Iron Banner armor.
3. Keep collecting different pieces until you reach 15 unique ones.

Pieces from earlier seasons count too, because the triumph is retroactive. An older guide says only five unique pieces were obtainable in its season, so the triumph is impossible to finish without playing Iron Banner in earlier seasons. That claim is tied to that season, so check current availability.