Found and accessed all of the Vantage datapoints.

Found all of the Metal Flowers.

Rescue Ashley as she's being carried away by the enemy.

Defeat Del Lago.

Clear the game without opening the item box.

Brought about true peace.

Defeated Destroyer Charadrius, wielder of true power.

Maxed all Follower ranks.

Successfully challenged the test of courage at the highest difficulty.

Destroy a Clockwork Castellan.

Complete a request for the Merchant.

Consulted Gallica 100 times.

Completed the Skybound Avatar.