This is my thoughts on how to implement trading into destiny. 1. Raid items cannot be traded . 2. Items scale down to the power of whatever you have equipped in that slot . 3. Planetary resources can be traded . 4. Silver and bright dust could possibly be traded . 5. Engrams can be traded . 6. Only weapons and armor from non end game activities can be traded . 7. Glimmer can be traded . 8. Quest specific items cannot be traded . 9. Emotes can be traded 10. An looking to trade emote could also be implemented