@b884d87d There's a scene in one book of David Edding's Belgariad series where two wizards are having a magical battle. One of them gets overwhelmed, panics, utters a spell he really shouldn't and effectively wipes himself from existence.

So... yes 😀 

 @2307797a Oh, yeah... With this skill/possibility you should probably avoid overwhelm 😁 

 @b884d87d Also, in Patricia Kennealy-Morrison's Keltiad series, a sorceress gets overwhelmed by grief and (deliberately) destroys an inhabited moon.