Imagine being able to trade with other guardians. That would be what would make this game way better! Let's say your friends have some gear that's not in their class but it's in yours and you have something in theirs, with trade you can basically switch gear! And let's say there's a gun you already have and your friends don't have it but they want it, you can trade that gun with a gun you already have! You can trade so you both can something good or you can just be generous and trade with other guardians just to give your stuff to them. This will be a whole new thing that will attract lots of people to start playing Destiny or to go back to playing it.