There are a couple of filters that would be convenient:
* power/toughness (for creatures)
* CMC
* number owned per edition (>= and <=)
* number owned across all editions (>= and <=)

Also: it'd be nice to see summations on the card page of how many are owned across all editions. I own over 70 giant growths; it'd be nice to have an exact number without whipping out a calculator.

I want to go through and get rid of excess cards and i'm planning on using the database here as a guide. Additional filtering would make it just a little easier.


[edited to add]: filter on owned per edition[/edited to add]