Very Spooky
You can't request someone else to edit a page for you; you have to do it yourself. If you want to write an example, it should look like this in Edit Mode:
* ''Namespace/WorkName'': Example text.
The asterisk creates a bullet point, "namespace" and "workname" should be replaced with the work page's namespace and title (in this case, it'd look like [=Harry Potter in Edit Mode), and "example text" is the example itself.
Just a question, however: which characters do you think are an example of One Twin Must Die? I haven't read Harry Potter in a long time, but if you're thinking of George and Fred Weasley, then they aren't an example. One Twin Must Die is not about just one twin dying, but rather one twin being murdered (usually by their parents) because twins are considered a curse or something similar.
back lol
Hello Not sure if this is the right forum to ask someone to add an example to an existing trope but this is the best option I saw. Anyway, I just looked through the page of one twin must die and there's no example of Harry Potter. I tried editing it myself but it looked complicated so I'd like to request someone who does know how to edit pages to add it in. Thank you!