Have at least one rank in each Mirror of Night Talent

Earn access to and enter the Administrative Chamber

Choose 50 different Daedalus Hammer enchantments

Trade 20 times with the Wretched Broker

Forge a bond with any character

Win a game as a controller character

Beat Thanatos by 15 kills or more

Unlock each of the Infernal Arms

Clear Asphodel

GTA Online: Reach Rank 100.

Use Greater Call to invoke an Olympian's aid

Acquire a magatama.