Not a bug or anything, but I think the function of searching by mark could really use some improvement. With the new set being out I wanted to search for cards with the Brokers’ watermark, but none showed up. I had no idea why, since you search by writing the name rather than picking from a list. I still don’t know whether that mark isn’t put in yet or if it has a different name. I tried a few others, and only about half worked. This issue could probably be fixed by just making it a list like with the creature types, so people will be able to find the different watermarks.

(Also this is relevant because certain cards synergize well but only share watermark and not color identity or name)