Palpatine damages himself when recovering events.

[JediKnightCZ]

When using the ability of Emperor, he damages himself to recover the event from the grave.

[db0]

Palpatine doesn't have any autoscript to recover events. How did you manage to make him damage himself?

[JediKnightCZ]

Via Ctrl+U as to use his ability - when there are Sith Events in the grave, he gives you the option of which to take, if there are not, he just puts the one in your hand.