Incarnate

From the rules:
You have lived before. In your heart are the souls of a thousand heroes. Their minds, their skills, their powers are yours to command. And their pain and their flaws are also yours to suffer. There are those who would kill you for this gift, those who want to tear the souls out of you. With this power, they will destroy the world. Alone, you are powerless. One person cannot stop them. But you are not one person. You are many.....

User note:
Incarnate was a collaborative design in twelve hours by many authors for charity.