In superhero fiction, you often see characters with powers that are applied only in select ways which logically should make the character virtually invincible if followed to their logical extreme. For example, Zatanna, the character who inspired this post; she (and most magicians in a superhero context) have huge, in some ways limitless power; her magic can basically do whatever the plot requires (one poster once described her power as "goofy omnipotence"). My personal favourite, though, it The Rumor from Umbrella Academy, whose superpower is the ability to lie and have it come true (ie, "I heard a rumour that the Musee D'Orsay is giving away many of its finest paintings" or "I heard a rumour that you've wanted to kiss me since you were eight years old"). Her lies literally warp reality (such as producing a duplicate version of her studying at the library when she was lying about sneaking out to see her boyfriend). Even the author seemed to realize the implications of this at the end of the miniseries, where her vocal cords were blown out.