I've started using UrzaGatherer a while ago, added a lot of cards to my collection but then got sloppy and didn't keep my online collection up-to-date while my physical collection underwent quite some changes.
So I've decided I'd like to start over. What's the easiest way to do that? Can I somehow delete all cards from my collection?
Many thanks in advance!
Sure: go to your collection page and using the bottom right menu: select all, remove from collection:)