Not sure if this is too similar to the upcoming feature (I didn't think it was after reading it.) But I love collecting - almost more than playing.

I'd like to see a way that when I enter (for example) Forest - Basic Land, that I can see how many I have (for playing) but if I want to go further I can see how many of each edition (currently doable), and art for each edition (not yet) and ideally, how many I have of each art (possibly only applicable to Lands) I think nesting it would work well - you never need to drill down if you don't want/need, but you could.

It's probably the compulsive collector in me, but I hate only having 3 of the 4 versions of Plains for a deck.