Complete a challenge to upgrade a piece of gear.

Issue a Death Threat, and then successfully kill the target.

Meet an Enemy or a Follower who has cheated death.

Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.

Destroy 10 monster nests using bombs.

Acquire each Hunter subclass.

Complete 30 challenges.

Complete a Nightfall strike.

Acquire each Warlock subclass.

Complete a Heroic public event.

Here's a prize from the MuiMui for completing World 1.

Find a secret area.

Defeat Valravn