The Trading Opportunities page shows the amount of cards matching between one person's want list and another's have list, but it would also be useful to know the *number* of cards in the match. Especially for people with long want lists, they might find it more efficient to get a whole bunch of cards in one trade, and being able to look for that would be helpful.

Also, when looking for multiple specific cards, the search only finds people who match ALL of them. It would be more useful to be able to search for people who match ANY of them. Currently, the only way to do an "any match" search is to search for one card at a time, which is unnecessarily laborious.