So bungie is very reluctant to have a trading system for obvious reasons. However there are certain Guidelines that would make it fit the game very well. Here's what I propose: ---Value System -Every Item is given a value on a 1-25 scale, and only items within a certain range can be traded. For example. Only items with a value of 1-3 can be traded with other items within that 1-3 value scale. And most exotics would be within 23-25. This would prevent older players from giving over-powered weapons to younger players. For example a lvl 20 going into the Iron banner with a Vex Mythoclast would not go over well at all. ---Same Class Rule -This is pretty explanatory, titans can only trade clothing items with other titans and so on. This would prevent players from giving overly-helpful items to players who want to start a new class. ---Same Piece Type Rule -Only primary's for primary's. Helmets for helmets. etc. In final I do think a trading system is necessary. However it needs to be restricted so that it works smoothly with the game.