Thanatos (Lv. 70) will be registered as a Sub-Persona in the Persona Compendium. The protagonist-only Persona from Persona 3 is now a Sub-Persona!
He has an incredibly powerful Skill that can clear out enemy groups. He is good for those who are struggling or want to enjoy a second run.

One heavy Almighty attack with a
high chance of instant kill for
three turns. (All Enemies)