LogFAQs > #985430898

While we're naming tropes, I'm surprised (and maybe relieved?) that nobody went with the Spanish word for black.

Anyway, fine, let's do this.

https://gamefaqs.gamespot.com/a/forum/6/6ee33e29.png
https://gamefaqs.gamespot.com/a/forum/3/3a9b9512.png

Recent top results:
Day 655: Black Mage (51%)
Day 654: Magical Girl (37%)
Day 653: Dark Magician (72%)
Day 652: Black Magic (36%)
Day 651: Magic: The Gathering (50%)

Past results:
https://board8.fandom.com/wiki/Fill_in_the_Blank_(Series%29

My response: River, followed by Pizza...did not think of Quest at all. (It occurs to me now when I dreamed this up that I had intended on answering "Cave Zone" from Sonic 2.)