Hi everyone I was just trying to sort my cards and look at all of my legendary creatures for edh and other fun deck building but didn't see that listed at a type. just wondering if this could be added or if there is some way to do this already that I am overlooking. Thanks

This is a bit of a hidden feature, but the "Subtype" filter actually searches in the entire type line.

So you're looking for something like this: http://deckbox.org/games/mtg/cards?f=47TGVnZW5kYXJ5