So I was thinking that instead of giving guest characters their own pages, it would make more sense to start a single "Crossover Characters" page. There we could write individual subsections with a brief description of the series and which characters were featured. And then there could be a gallery for each series?
Fullmetal Alchemist is an anime written by blahblahblah about blah. Alfred, blah, blah, and blah were featured as guest characters in Imperial SaGa during the _____ event.
Gallery: Imperial SaGa FMA card art
Monster Hunter Frontier Z is a blahblahblah game. Blahblah. These characters showed up during the blahblah event and could be obtained from the gacha.
Gallery: Imperial SaGa Monster Frontier Z card art
To me this makes more sense because it keeps the Wiki focus on SaGa. (I also think it's kind of a waste of time for us to write a bunch of pages and strategies for each guest character since the events for them in Imperial don't really repeat.)
We could compile the text from the guest character pages that already exist and start from there as to not waste the work put into them. Does this sound fair?