Search across collections of all registered users for the trade that you need or are missing.
Sometimes it can be hard to remember what is missing to complete your playset, or what what is missing for that one deck you need. Maintaining a ‘Wants’ list also helps other people to start trading with you
After you have started collecting from a set, it becomes hard to maintain an overview what you already have - and what you might want to track. Destiny Archive provides you with the ability to get an overview of your spare cards, before you decide to trade them. While you usually only use 2 of a kind for a play set- having/ maintaining more of a certain card can be very useful (I’m looking at you Electroshock!)