"One in particular. At least one. This one person who almost managed to cause nuclear war. And also is the guy who murdered my grandparents. In Auschwitz. Because he was a literal Nazi doctor. And had a mutation that let him absorb and store any kind of energy, and then release it later to devastating effect. If I were you, I wouldn't do magic to any of him you find, because I wouldn't put it past him to store that somehow."